I'm looking for a replacement for the gaucho in the front of our 29' Ambassador. As part of the remodel, I'm hoping to get some more sqft of bed space. Has anyone had experience with putting a sofa / sleeper replacement in their A/S? Most of the ones that I've seen have about 50 x 74 mattress. I went to some of the RV dealers looking at the interiors for the '03 and '04 models and saw some that have a mechanism similar to household sleeper couches. Haven't been able to find a vendor for one yet. Thanks in advance for any help.