There is another site that you can upload you for sales to , mine though [ wow all four of them ) for now are listed on adflyer [ UK only I think ]. (I have only listed where I have seen a want ) - where I can keep cost down or on a competitor internet auction site to the present market leader [ all listed under a different name to my 45cat name], keep doing internet searches as well as other sites do throw up stuff - doesn't oxfam have a record website ? I would rather use 45cat to offer spares to persons seeking and would be happy for a percentage to go towards running the site. Of course record fairs and antique markets / boot sales do remain a good source of records in varying conditions and prices from cheap to outrageous!
Oxfam does indeed have a record site...have you seen their prices?