I have been charged with finding new homes for a collection of vintage machines and some tables that the mission group from our church has (they have upgraded to portables). I don't know anything about makes and models, but there were a couple of the older black singers in the collection. The rest look vintage '50's or 60's. We have tried the machines out and they all have varying problems, anything from worn belts, to ??? Should I just look to haul them and their tables to the dump? Or is there a market and I should put them on Craigs list?