I have 2 dune style setups for sale
4mm cub (68mm bore) and a 4mm cheeta pv motor (72mm bore)
both have wiseco cranks, cases, topends with good pistons and good nikel coating, stock tranny, clutch side stuff.
complete motor w/out ign, carbs, pipes $2,000 + shipping (id have to check on shipping to give you a shipped price)