This SB 727 was rebuild a couple of years ago and was never used and has kicking around since. It doesn't have a dip stick. What would be a fair price to list it??
I would start at $250 anything more your taking your chances if it needs to be opened up.
If you don't have a converter you will pay the core charge when you buy a new one unless you buy from summit or jegs and i'm not sure if they have a core charge either.