Sounds like you're off to a good start. Take lots and lots of photographs as you go. You'll be glad later that you did.

It also helps with questions, as they arise.

Only one comment for the moment: If your BB bearings are in bad shape, you'd better take a close and careful look at the BB races. If they're pitted, you may need a new BB. In which case, you might consider going with a sealed bearing unit. But that's just an idea. Check out those cups, first.

You live in a city filled with experts. Advice and spare parts should be easily available. You're lucky!

Have fun.