Best single item I ever purchased for my E-M was the assembly manual from ERA.........Feel free to quote me on that, ERA did on their web site!
I started with a 1985 vintage EM frame and 11 years later I had it on the road. If the car you are looking at is already running you are way ahead of where I started. The support you will get from the guys here trumps what you will get from most, if not all manufacturers. Be not afraid, buy it if you like it. Just please understand that with the soft top installed, it looks like something form the old Munsters TV show.......
Good Luck!
Jon
P.S. Check my gallery for pics of what's under the nice paint!