Did you double check that the city or county has any rules about the length of time a particular RV can reside?
Did you confirm that you do not jeopardize the ability to switch back to MHs when the inventory is satisfactory?
A seasoned MHP owner in the south liked his arrangement of half MHs and half RVs BUT his location allows the RV to reside there as long as they like.
But I mention those two issues because the SE city where my park is has a rule that a given RV may only be there for 3 months at a time. Then they have to leave for at least a month before they can return for another 3 months; repeat… Requires more hands on than a MHs check in / check out with that kind of rule. And do you have sewer or septic tanks? If the latter and you have short term RV tenants is it too much risk to hope they will be careful about what they flush into the septic tank?
In my city, a property with MHs would be a Residential zoning but to allow RVs the property would need Commercial zoning. So if you took a portion of your property would you need to get permission to make it Commercial (or a variance) to allow the RVs? And if you want to go back to MHs on that portion of the property be sure you have no problem returning to Residential (get it in writing by the right authorities). In my case I have grandfathered MHs on a Commercial zoned property. I could remove some distressed MHs and replace with RVs but then I can’t change my mind and put MHs back on. You might not have such rules.