Ebay is probably the cheapest route, last one I got there we $20 and came with a Rolleicord III! If you can't wait ritzcam.com, pacificrimcamera.com, or goodwinphotoinc.com usually have a selection of collector quality at that premium as well as users that are reasonable (I got one from Ritz for $35). Bottom line is to get one, it makes a difference with a TLR.