All I can say is good luck. 46/16 may be a bit short. I would look at something like 46/18. Make sure that the chainline on that thing is RIGHT. You will be putting a tremendous amout of force on the drive line and as such you dont want it popping off. My preference for fixed is an Sram 01 chain. I would also consider a chain keeper on the front just cause of the level of force being applied. The rear wheel really must be a bolt on. I would not use a QR again the amount of force may cause the wheel to slip in the dropouts. Please tell me you are going to be using brake(S) on this thing.