Schwinn Mesa Runner in need of TLC
I bought a 1984 Schwinn Mesa Runner at a garage sale yesterday. It has been in a storage shed for a long time and is completely dry and gunky. The rear derailleur has a cog whose teeth are worn down. It's so smooth that if you didn't know what it was supposed to look like, you'd think it was some weird little wheel back there.
The brake levers have a bit of vertical play in them and there's some rust on the rims.
I figure the whole thing needs to be gone through - cleaned, lubed, adjusted, etc. The thing is, I don't know anything about bike maintenance or repair.
It has a 10 speed drive train, but I'm willing to consider changing it out to a single speed.
I'd also like to add fenders and a rack to it.
Should I take it all apart before cleaning it?
Where do I get parts?
Should I try to make what's on it work, or replace all the cables and the derailleur?