Greetings and blessings to all! I was reintroduced to bicycles by a friend a month ago and ive been using his bike everyday eversince. Ive been meaning to buy my own but i was told that its way more fun to assemble one from scratch. I cant wait to build one! I just got a really old and rusty mountain bike frame from a junk shop, but im not sure if its still good for restoration. How do i go about it?