I FINALLY just got 2 aftermarket rectangular headlights. Made a mounting bracket and mounted that inside the opening and put in the new headlamps and they work GREAT. I think they are the replacements for the freightliner front rectangular light they have. Anyway they are 4"X6" rectangular and actually look every bit as nice as the originals and cost FAR less ($40 vs $200).
Now on to the rest. I've replaced ALL the furniture up front and have changed the mattress to a Sleep Number in the rear. I've updated the shower a little and new higher toilet. Getting awfully close to taking it out on the road