I would have water and a dump nearby also if you can manage it. When we built our house 12 years ago we had a 30' fiver and built just a parking pad next to my shop building. I had the water and sewer dump run at the same time as the house was being built. When the inspector asked what it was I told him. He said no it isn't, it's a clean out. I said my mistake, that is exactly what it is.
Over time we went to a 39' diesel pusher so I came off the shop with a roof to cover it. Next came walls and a 14' wide garage door so now the whole thing is enclosed. It is 18 x 40 so plenty big for our 35' fiver we have now. Having the dump and water makes life a lot easier not having to worry about finding a place when we get home.
We have had several rv's thru the years and a cover does make a difference. They are much easier to keep clean and maintain. Plus, when it comes time to sell I think you can get a better price for it. When we sold our motorhome 2 years ago I got my asking price of close to high retail because the folks that bought it said they had not found anything in as good condition as ours was.
2013 Excel Winslow 34RKM
2015 GMC 3500 Denali Duramax 4X4 dually