Mike,

Still getting the dozer. Have not pulled the sleeves, the pistons are still stuck in them.lol. Have not sourced out rings yet. Appears your the guina pig there. Been looking in the same places though.
Might have to come see your operation soon.

Matt

your welcome anytime...I have saturday-sunday days through first of Feb, then back to tues-wed-thurs days off. PM me when you want to come so I can clean up the shop
I soaked my engine in penetrating oil for couple of weeks, then disconnected the rods, moved the crank out of the way, and used a 4X4 peice of oak and a 2 lb hammer. Piston came out easier than I thought it would. Sounds like yours is stuck tighter than mine was though.