@David Kauzlaric , I have been buying and selling mobile homes "Lonnie Deals" just like this for many years in Southern California. The first thing I would do is read the book deals on wheels by Lonnie Scruggs if you have not already done so. The challenging thing about selling mobile homes like this is value is incredibly subjective. Also, the manager of the Park is ultimately the gatekeeper of your transaction so you need to make sure they are okay with what you are doing. I personally sell them and carry the paper and do not rent them because older mobile homes tend to break and I prefer the minor inconveniences that come holding the paper over the major inconveniences that can come with this type of tenant. One of the first things I would do would be to run a test ad in that market offering this rehabbed mobile home for sale with X amount of dollars down and Y amount of dollars monthly payment. See what kind of response you get before you start investing your money.
Hope my $.02 helps - Tim