394 cylinder is NLA... so if you want a NEW cylinder, that Dall pointed to, its $139 shipped plus $60 for the intake kit. PLUS you need to figure out an impulse for the carb, which means you either swap the carb (with me
) OR you mod the carb I think.
This is assuming you can use everything else that is on the saw. I'll humbly dissagree with that. But, if you are $250 into parts, plus $139 P&C plus $60 ... new gasket kit, seals, whatever else.... you're still $500 easy into a saw that is falling apart otherwise.
I LOVE these saws... so in the end I think building these saws is great. But if you are concerned about the $$... this one's gonna set ya back more than $500 I think.