How do I analyze a Self Storage Deal?

[Emma Hustis]

I am talking to an off market seller of a 120(ish) storage unit facility in Bonner's Ferry, Idaho (near where I live). 

I have the numbers for the business, but don't know how to value something like this. Who has some insights? I know self storage is popular these days so I need some wisdom from those who are doing it! 

I might also be looking for an end buyer, private money, or partner for this deal depending how the numbers shake out. 

Thanks in advance!