Can't ride a bike for shit. But I love tinkering with anything I can. Last year my husband got back into cycling and he's been killing it. Lost 50lbs, he's rode 5100 miles on his current bike, rides everyday.

 All this to say

He's been thinking about getting a fixie to switch it up, and with the tarrif bullshit I figure no time like the present. Got a frame they were about to scrap as such the frame was all we got.
Frame: Bianchi Pista ('07)
Fork: https://a.aliexpress.com/_mPomXLH 25.4 mm version
Headset: https://a.aliexpress.com/_mMzmNvD
BB: Not yet arrived but ordered https://a.aliexpress.com/_mLJ2lZZ Riderace (not sure this was the right choice)
Crank arms I'm considering https://a.aliexpress.com/_mL3pEC7 Zeroing or
https://a.aliexpress.com/_msslIs7/https://a.aliexpress.com/_mLlRSjh Evosid
Seatpost: https://a.aliexpress.com/_mLBuZ6F
Front Brake assembly: getting from a buddy
Hubs: https://a.aliexpress.com/_mOsKJXl (want to buy in case I ever get around to building a wheel)
Planning on buying a fork adapter to fit a normal sized stem. Along with the compression plus for carbon fiber and spacers.

Is there anything I'm missing or anything that looks fucked up?

Any advice on the cranks?  Seems like there are so many variables with fitting and shitty ones flexing (he's still a big dude 265lbs 6'3) so I don't want to murder him before I take out an insurance policy.

Thanks for any advice you might have!