Oh, there also has to be an option to use any poly bags. If it could do the foil bags even better but from my research it looks like it'll cost way too much.
Is there a huge difference is preservation if you don't do vacuum sealing and just do the heat seal? I was thinking maybe I could rig up an air pump to suck the air out while I'm heat sealing too... not sure if anyone has tried this. I did a search for diy vacuum seals but no one has done anything like that.