There are about a dozen posts here:
https://www.irv2.com/forums/f84/new-7-3-ford-gas-519454.htmlYou will find a lot more if you just Google up "Ford 7.3 gas motorhome" or other terminology. Hope that helps.
There was a problem early on (with some installations) involving inadequate air flow in the area of the spark plug wires IIRC. It's been resolved by now (by most all the MH manufacturers) I am sure.
I have the venerable V-10 and it is amazing IMHO, but I would rather have the new one you are getting ...... more power, less noise and just a whisker better fuel economy (maybe.) Just my $.02
Safe travels to ya.