Help with 60's vintage kart

Hello, i have (what i think is) a early 60’s Mcculloch Go Kart 800, with a 2 stroke chainsaw motor. i had started to restore it a few years ago but eventually became too busy to work on it, and the fact that i had a lot of trouble finding a chain, fuel line, and new wheels didn’t help either. does anyone here have any advise on what to do to get this thing running/driving?
Thanks in advance
(below are some photos of the kart itself)