Ken,

I'm looking at a ST2300 in the classified as well. That modified head on the Thundertiger 1.20 really grabbed my interest.
I've got a ST3000, an ST2500, and an ST3250 laying around that I've avoided using on my projects until now. The Walbro carb on gas / glow ignition solves the fuel problem without adding an EI.

I'm looking forward to trying the throttle arms.

Sent you a PM as well.

Thanks