Hey Chris getting closer with the interior? i plan on using some jute padding to build the floor up a little on each side of the frame connector and secure it with some 3M super 77 or 90 adhesive.
http://www.ebay.com/itm/like/1905985...lpid=82&chn=ps
http://www.homedepot.com/p/3M-Super-...7-CC/100067550