We live in Los Angeles California so big time sales tax. I’m a manufactured housing dealer so I know all about sales tax (the scoundrels)! Thanks so much.Pretty good advise already provided. Just so you don't get confused on the sales tax issue. In the states I'm familiar with it really doesn't matter if you buy from a dealer or private party you will still pay sales tax. If you buy from a dealer he will collect it, if you buy from a private party you will certainly pay it when you register your new purchase in your state.
Good luck with your search.