Dude, if you're going to ignore all the advice in this thread about fixed with no discernible seat, just go ahead and buy whatever complete you want, then paypal me like $100 and I'll build you a flip flop wheel in whatever size you buy your complete in. I'll even alter the hub spacing. Freewheel and cogs are up to you.

Might as well make your own mistakes, and with a freewheel on the hub as well, as soon as you get sick of standing all the time, you can just flip it over and get back to zero. All for one Benji!

I'm serious about this.