Frankenstein bike advice

I have two bikes currently and want to upgrade one to the best of both and sell the other. I am looking for advice on what to do!

Bike 1

Cervelo p3
Campagnolo bullet ultra wheels 80mm
Shimano 105 front derailleur
Dura ace rear derailleur
Dura ace rear cassette (10 speed)
FSA cranks
Vision tt bars
Vision levers
Ism saddle

Bike 2

BMC tm01 time machine
Dura ace di2
3T Aero bars (risers feel unstable/wobbly)
Dura ace brake levers
Zipp 303 firecrest carbon wheels
SRM powermeter on crankset
Dura ace front and rear gears (11 speed) Specialized saddle

I am leaning towards keep the p3 frame, swap the wheels over, swap the bars maybe and replace the risers. There is some tape covering the risers on the BMC which I will need to investigate.

The dura ace di2 is of course superior to the mix on the p3, but is swapping this a reasonable task or am I opening a can of worms doing that?

Is this power meter worth swapping or is it too old to consider doing it? I will buy one for the p3 if not

Thanks in advance for any advice!

Here is a link to photos of both bikes:

https://imgur.com/gallery/bmc-vs-p3-FIEzuw4
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