Every state and park and business will be different, but... my research has shown most RV park's don't want you doing major renovations in them.
Mobile home parks tend to be a little different. Covered storage places vary. Some only allow you to wash off, and dump, that's it.
We ended up getting a covered Storage unit for ours. It's at an actual storage place that offered covered RV & Bus storage.
Personally, if you don't have your own place right now, I think this is your best bet. It's a tad bit more money. But should generally be under 300 a month.
We paid $250 for two months.
Our space is a 14 x 60 ft, I'm unsure of the ceiling height, but it's high enough as you can see,
It has a power hookup, so I have taken my tools and fans over there. gives me space to work privately and I have 24/7 access. They don't seem to care that I'm there working. It's basically like having my own garage.
On a funny note, I have noticed that I might be the only person in the 30 units with a stored recreational vehicle. So far I have seen guys running their businesses out of them, lol.