The timing chain was one of the things that I had the most anxiety about doing, but turned out to be pretty straightforward. I didn't even make a fancy guide, just some scrap wood and screws. Worked fine.

The hardest part was finding a chain tool. Any of the cheap ones will NOT work to crimp that type of chain, despite the threads suggesting them. And in the end I didn't use one, just ground the ends off a link and then when I put the final link in I just peened it. So totally doable without any special tools.

-Rog