The Acera cranks will weigh a bomb, so if weights a concern...?
Your probably better off with a road compact 34/50 like Tiagra (with outboard bearings) or the square taper Stronglight Impact.
yeah, I got hold of a couple of FSA Omega sets on eBay and sold one
PARTS FOR SALE:
vintage Brooks Professional saddle | Specialized FACT CX fork | Columbus fork | Reynolds 531 fork | Avid Arch Rival v-brakes | various 700c, 27" and 26" wheels | vintage Weco hubs (fixed/freewheel) | vintage Raleigh ladies frames + lots more!