wicked93GS,
Pistons cost on average $40 a piece, you might want to call and check with Conicelli:
http://partznet.com/mitsudsmclub.html
You might opt to run 2G 8.5:1 pistons, but you'd have to either go with the 7-bolt block or machine the 6-bolt rods to accept the 95 pistons.
Don't shave the head in attempt the compression ratio. You'd decrease valve to piston clearance (and bend the valves the first time you crank the engine) and throw the cam timing completely off.
Not bothering with the oil squirters is a good decision. We built several turbo engines from NT blocks and never experienced any reliability problems (and so did not anybody else after not installing the squirters).
BUCK,
The only solution to your idea would be either relocating the piston pin higher (impossible since the pistons would be slapping like crazy), running shorter rods (= loss of torque) + welding the combustion chambers of the head (to maintain the same compression ratio) or increasing the deck height (very expensive since you'd need a longer t-belt and custom cam sprockets). Notching the pistons would require completely custom units + welding the head as well - and you might as well bend all valves several times for the same money...
