I suggest visiting a website called mobile home bay http://www.mhbay.com
They advertise these types of homes for free and usually have several available. You may also want to seek out somebody locally who sells repossesed Mobile homes.
Speak to a lender first though, financing can be tricky on these, especially if you do not put land
There are many homes in the DeSoto County Fl. area Example 2005 Horton 4 bed/2 bath on 150X115 lot for $88,000. . Another in SW COUNTY around $30,000 but older. Email firstname.lastname@example.org or call 863-990-6988
There are many parks or individual properties around Arcadia, Port Charlotte, Punta Gorda for reasonable prices you just have to contact me I can find you some deals. Email me at: email@example.com