How do you valuate a Mobile/RV park that's empty?

[Carlos Lopez]

So I'm looking at a park that has a house on it and about 18 spaces. all empty .
park hasn't been used in years. seller says licenses/permits are up to date but it'll probably need new wiring, maybe fixes to sewer.
How do I go about figuring out a value for this particular property?Would you go for something like this? There are about 2 other parks within a 5 mile radius

I've read multiple articles on park valuation but they always take into account the rent income.