Installing Stabilizer Jacks on Holiday Rambler Class A?

Hi Brad and welcome to the forums! :)

I suspect that the reason you have not had much success finding information about anybody doing that is that, as far as I know, it has not been done. Those jacks are not made for that kind of weight.
Even if they were, it would be almost impossible to crank them hard enough to stabilize a motorhome, and for sure you could not use them as leveling devices.
Barney