I went back today and looked at the theater seating we were looking at. At 78" wide it wasn't going thru the 69" tall door. So I turned it up and lo and behold there are 2 pieces of angle iron, one front and one back that have 4 bolts holding one recliner, 4 bolts holding the console, and 4 bolts holding the other recliner. 12 bolts and I have 3 pieces and 2 pieces of angle iron. No problem at all working that into the trailer one at a time. It makes sense after looking because this setup can be bought with or without the console, with another recliner in the middle, or however you wanted to mix or match it up.
Happy camper, now all I have to do is recruit the manual labor to get the old sleeper/sofa out.