a friend of mine has for sale a Soma Rush with this:
soma rush track bike 59 cm top tube, made of tange prestige steel,horizontal dropouts, and track geometry, surly lugged steemroller fork, thompson stem with 1 inch shim, cane creek headset, sealed shimano bottom bracket, 170mm vuelta cranks, 46 tooth sugino single speed chainring, 16 tooth dura ace track cog njs certified, velocity deep v rims (1 brown 1 green) surly fixed-fixed hubs, dt swiss spokes, kalloy seatpost, kmc gold chain, nitto bullhorns with gel bar tape, dimension track pedals with cages. I could get it for $515, it was built about a month or two ago, and am wondering if you think this would be better than getting an IRO Mark V?