RVTravler wrote:
 we are going to travel to our rv manufacturer and have a residential refrigerator installed.  I figure it will take us 4-5 days to get there. 
It's not that complicated.  
I  just measured the size of the hole the Norcold would vacate, ordered a fridge that'd fit online.  They delivered it to my campsite, I stuck it in the hole and plugged it into the 120v power from the old Norcold.  Then put a couple of pieces of plumber's strap from the hinge bolts on the top of the fridge back to the cabinetry to keep it from jumping out of the hole.  
I left the vents from the old fridge on the side of the camper for ventilation.  And screwed a couple of 2x4's to the back of the fridge's compartment to allow for air flow.  On the hottest day I stuck a thermometer in the back of the fridge to check temperature rise over the ambient temperature and found everything was OK.  I didn't need to add a circulating fan.  
I'll tell you, RV manufacturers are not refrigeration engineers.  You'd be better off finding someone that knows a little about refrigeration to do the job.  I'm an HVAC tech.
I now have a nice 20 cu ft Samsung French door fridge with the dual evaporators & ice maker.  For $1057.  If you count the cost of the trip, you'll have $5,000 in your conversion. 
You don't really need to travel clear across the country to get it done.  (Unless you're making the trip anyway)  Just sayin'.....