need a new chainsaw

I was just watching a vid of a Chinese clone of a Stihl 066/660? 24/25" bar, cost like $350 instead of the Stihl @ $1900. Pretty big saw according to the guy using it. I just gave a buddy a little orange Sears 12" from 1978. Carb was shot so he's rebuilding it, then the throttle linkage came out and he had to take the whole thing down to nothing to reattach the thing. My project at the same time was a featherlite/Husky XT260 weed whacker. Broken primer bulb and the thing wont start with the cap off. replaced bulb and all the rotted fuel lines but I think the pulse carb needs pressure (has a leaking cap) in the tank to push fuel into the carb?
92cc Holzfforma® Blue Thunder G660 Gasoline Chain Saw Power Head Without Guide Bar and Chain Top Quality By Farmertec All parts are compatible with MS660 066 Chainsaw