I have 165 arms and also a whole Rotor crank that will work for sale. I'll see if I can dig back to find my original sales post.

Here is what I still have available. Let me know if you are interested
http://forum.slowtwitch.com/forum/Slowtwitch_Forums_C1/Classifieds_F2/FS%3A_Brand_new_Rotor_cranks%2C_165mm_arms%2C_round_aero_chaining__P5846147/?search_string=russ%20brandt#p5846147

I also have these if you want to try 170s


http://forum.slowtwitch.com/forum/Slowtwitch_Forums_C1/Classifieds_F2/FS%3A_Rotor_170mm_crank_arms_P5876853/?search_string=russ%20brandt#p5876853

Thats way over what i need and want to spend -- thank you for taking the time to respond. I ordered something from ebay. In a few weeks i will have a 175mm crankset for sale :)