Looks like a great mod.
You helped put me over the edge towards a future project I want to undertake. That is take a single speed bike of some sort and put a 2-speed hub in it.
I ordered a SRAM Automatix through Bezo's company. Should have it in a couple weeks if all goes as planned. Although, I haven't come up with the bike yet. In this situation the Automatix is a 36 hole hub, seems like that reduces the wheel options a bit.