Looks like a solid build, especially considering the weight.
I'd probably go with something like the parts below. They are'nt the lightest options. But they arent mad money (silly money, but not mad), and they should be pretty solid (I have the square taper version of the BB, its done me proud). Thats me though. I very much doubt we weigh or ride exactly the same.
Cheers. I'm going to use SPD-SL, so DA I suspect, can't decide whether to go 1/8th or 3/32nd.
Currently thinking
Saddle - SLR (maybe stripped)
Chain - KMC X9 SL (or Miche track if 1/8th)
BB - Stronglight twister Ti
Bars - EC90 classic bend
Pedals - DA or maybe Ultegra