It won't hut to ask the guy if he will take less for the motors. I would think that they would be good motors being used in a gas pump. By the way I bought one at a garage sale a couple of weeks ago for $8 but I thought of a use for it before I bought it.
You could use one with a polishing bonnet or buffing wheel if that would be something you would use.
5" or 6" disk sander for small parts if you make small items a lot. I have a 5" and 12" and use the 5" most of the time.
1/3 hp would probably be a little light for a lathe however that depends on how large of lathe you want to make. If you want to work on small items then it would probably work great.
Ask yourself if there is any thing you could use in your shop and if you could use one of these motors for it. Like Dan says, "if you can't instantly come up with a use, then you don't need them taking up space in your shop".
Your BRAIN Is The Most Important Power Tool In Your Shop. Turn It On Before You Turn On Any Other Power Tool.
A Disability Is Only A Disability If You Let It Be One