Sorry, but nothing in that price range presently. There is one in Grover Beach listed for $45,000 and another on Cienega listed for $42,000. In Mesa View there are two, a single wide for $14,900 and a double wide for $38,000. There are a lot of amenities in that park so space rents tend to be on the high side.
The link below will provide you detailed reports about these four listings.