i opted to buy new with all di2 done by the oem. now i got a p3 that was "slapped" together.

So I recently posted that I was considering updating my P2 105 to Di2 or buying the new P3 Di2 Ultegra. Needless to say I purchased a new P3. Looking online I saw a price, called the LBS, he came close to matching it and we agreed on a price. It was for the 2019 P3 Ultegra Di2 Rim. He took a deposit and told me he would order the bike and it should be in later that week. During the next week I came in to pick up the bike. He was swapping wheels for me and helping me transfer things over from the P2 to the new P3. While at the shop I noticed that the wheels that come with my new bike are not the spec'ed wheels (spec wheels are mavic elite, he gave me DS Swiss). I asked and he said something like, "oh the bikes come different ways, etc" I didn't care much about the wheels as much and sort of accepted what he told me. Then when I looked it up it turns out that that the DT-Swiss wheels he gave me are spec'ed with the standard Ultegra build (none Di2 version) and the Mavic's are spec'ed with the Di2 build. At any rate, I bring the bike home, (my first Di2) and today started to look into the buttons on the shifter, and much to my surprise I have two buttons on my shifter but the spec says it should have only one button. More research on my part and I realize that my bike was spec'ed with the 8060 shifter (one button) but what I have is the ST-6871 shifter with two buttons. Now I am boiling up, I called the shop owner and asked what the heck is going on with my bike. He went back and forth but essentially it turns out he had an Ultegra build (none Di2) in his shop and he took off parts from another bike and built up the Ultegra he had to Di2. In the process I didn't get the right wheels or shifter. He said he would do what ever I wanted, take the bike back, etc. I said he should have told me what he was doing instead of trying to sneak it by me. He said it is standard for shops to build bikes, ie put them together a certain way but this doesn't feel right. For example, what battery did he use, is it mounted in the correct place or just thrown in some where, and is the whole Di2 assembled as it would have been if it was purchased as a Di2? I do see some signs of "assembly" minor scratches on the extension bars, stem, etc. So, what is a guy to do? Is this okay and should I just get over it? Was the owner deceitful? What would you do?

PS
To make this even more complicated, after my first ride, I leaned my bike against the wall and it fell, leaving a couple of scratches on the derailleur and my pedal, uggg. So taking the bike back may be an issue now that I managed to scratch it on my first day.

People are being very forgiving. I wouldn't be.

1) He took your money and gave you something other than what you agreed to.
2) He didn't disclose where he was providing you with something other than what you both agreed on.
3) When challenged about the wheels, he lied straight to your face about it - "oh the bike comes in different ways".

I'd be livid and he wouldn't get a penny out of me*. Notwithstanding whatever damage I caused when it was in my possession.

* the only caveat I have is; how specific were you with them about your expectations for what you were buying? In my industry we don't buy anything complicated without agreeing on a SoW - a Statement of Work. A set of deliverables or, in simpler terms, what do I get for my money? Probably a lesson to be learned here.

it is a moral issue but i decided $500 was worth more than my morals

Fixed it for you. ;)

I've gotten confused - is this a money issue, a moral issue, a didn't get what you want issue, or something else? If it is a money issue, go for the $500. In any event, you want to make sure you fully enjoy your new bike (at whatever price).

he just responded that he understands my frustration and is willing to take $500 off the price. Sounds fair, i think I'll take it.

The more i read online and the responses here i realized that i may not like the one button shifter. No control over the front der seems odd. long story short i was OK with the build so it just came down to the deceit. I guess i gave him the benefit of greed (i mean doubt). we all make mistakes and i do think that he is basically (i hope) a decent guy. I really want to thank everyone here and the funny thing is as a i learned the truth i immediately thought of slowtwitch and getting the advice from you guys. thanks all, itv really helped.

x2 with everything said here.