Without going back through... not really. I think everything else just makes for a better shifting, longer lasting trans. You could probably run a stock input clutch pack, and back off the accumulator springs. Neither of those things are really costly though, so I guess, why wouldn't you?
As far as torque converters goes... I was just going to run a stock PNH unit. I'm probably not the best person to ask.
You in the market? I'd love to get inside a tap shift!