I will probably do it tomorrow since I have all the parts laying around from being a basic pack rat.
It looks very simple. Hardest part seems to be disassembly, and I just downloaded how to do that.
Otherwise, I'd send it in for the swap because his price is really reasonable. I also just ordered the 6.5" TKO brake.
I made my own that works great, but it looks really tacky, but at least I know I can do it.
I'll try the trigger out this weekend and report back in a new thread.