What are some good vintage rigid frames to build from? I know nothing about building so all new to me. I have an mid 80's Schwinn Mesa Runner I got for free but have read that it was bottom line. Scrap components and look for same period but better components? Or look for a particular frame on local CL? I am 6'2" so a frame to fit is gonna be hard...I ride a 25" road bike. I see A LOT of seats sitting way up on these MTB builds...I guess that is compensating for a smaller frame?