Thanks to Beach and everyone for all the good thoughts.
I just recently spoke with the manufacturer of the pop up, and the new (to me) info is that the issue with any Ford supplied power to the pop up campers house battery is that the voltage is generally too low to get the lithium batteries charged to 100 % - however the lithium capable charge controller in the camper will take care of this by taking power from the 380 watts of roof mounted solar and top up the lithium batteries, using a higher voltage.... and get the lithium to full charge.
So in some ways the ford power delivery isn’t 100% super important - the 380 watts of solar (plus a lithium charge controller) is.
makes sense to me, from what little I know. :-)
and a number of people with similar campers and the 6.2 L Ford Gasser have said it is totally fine - and this is with the 6 speed... so hoping to avoid the $2,000 up charge for the 7.3 L gas, and go with a tried and true 6.2L. It only has a bit less HP and torque compared to the 7.3L so I think we will be ok.
Hope we have enough power. The pop up camper wet will be about 2,500 lbs to 2,750 lbs, plus us 3 and some stuff in the crew cab.
If you have a lot of 12v electrical appliances and want the 5th wheel electrical connection to charge the house battery, keep in mind it has 14-12ga wire on the charge circuit(check to see if the factory harness has heavier ga wiring) which will limit the amount of charging that will take place, especially on short runs. I have a minimal requirement for 12v power and don't require a lot of house battery charging while driving but it is something I wanted,. I added my own for way less than $500, I think I paid about $75 for the kit, bought it from Etrailer and it took about an 1.5hrs. to install. Have you considered the new 7.3 gasser that should be avail. this year? I have the 6.2 w/3.73 gear in a 2012 super cab short bed and while it is adequate for me, you'll be pushing a lot more weight down the road. I don't have any experience with the 10spd and the 4.30 configuration so you might be fine.
Edited by LosAngeles, 22 September 2019 - 04:14 PM.