I just did a seach on Realcomp MLS and there are no properties offering land contract terms listed. Your best bet would be to work with an agent who can contact listing agents and/or homeowners to ask if they'd consider a land contract. The difficulty you're having locating a land contract is because of due on sale clauses in most mortgages. You would need to find an owner that has a free and clear home and wants to sell.
Karen Paytas, GRI, CMS
Real Living Kee Realty