What would be a good project gun this winter?

i've been looking for something to occupy me this winter and i finally realized that an old gun would give me something to fix up and have fun at the same time. I was at a gun shop today and saw a couple of cheap guns. even a stainless .32 harrington and richardson for about $50. i figured it might be a fun project. Any other suggestions of project guns that may cost between $100 and $200. There are plenty of gun shops around here so i should have no problem finding them.