We've been slowly working on some resin bases when we have time to spare for it at the store over the last few months. Some of them are now available on our online store. We are working on more all the time and have some that are having molds poured as I type, so check back soon!
These two sets I designed. The "Ruined Lab" bases are similar to the bases I made for all my Pulp City stuff, only much more detailed. 40mm + 50mm Junkyard bases are being molded at the moment
Have a look here if you're keen!: http://www.battlebunker.com/index.php?main_page=index&cPath=210_211