What should I expect to pay for a good condition 69 Fastback?

Hey everyone! I was hoping I could hear some of your thoughts on this topic. I'm currently in the market for a 1969 mustang base fastback/sportsroof. I've been looking for a while now and have seen various asking prices and wanted to see what you guys would think is a fair price for a good condition/daily driver mustang (no rust, no mechanical issues). I would appreciate the input!