Most '06 era RVs are nearing the end of their 'low maintenance' life anyway (unless they are of exceptional high quality build - which these likely would not be). So if you're looking for something that will last several years without huge problems - would recommend steering clear of these.
I have a friend who worked for FEMA and oversaw the project to clean these trailers up a few years back. Based on what he told me, only a few of them were in decent shape - the rest pretty trashed (even unlived in ones).
- Cherie