If you have an underlying loan, given a choice between a straight contract or a wrap-around contract, offer the wrap-around land contract. It will give you an override on the existing interest rate of the first mortgage. Ask for legal advice about an alienation clause. The lender could call your loan due and payable if the lender discovers you have sold the home through a land contract.
When we are buying land for our personal accounts, we always try to negotiate immediate possession for “purposes of making improvements.” This catch-all phrase gives us the opportunity to get a head start on simple improvements such as rotor mowing and clearing brush. You must be able to get the Prospects on the property before they can make an informed decision to buy. Often the prime spots which would normally “close the deal” are grown up in briars and brush. In many husband and wife instances, only one partner wants to move out in the country. The husband may be trying harder than we are to sell his wife on rural living, but if she can’t see the creeks, views, and big trees, then neither he nor we will be successful.
You can also look to certain companies and organizations that have a concentration of people that may fall in the above mentioned roles such as investment companies (i.e. Charles Schwab, Fidelity), financial advising companies (i.e. Morgan Stanley, Merrill Lynch). There may be a higher concentration of people who can both afford and want to build their own custom homes or to build income-producing properties. Try linking yourself to financial advisors who may already know of people who have these types of dreams. This isn't a comprehensive answer of all the possibilities but just some thoughts. Good luck!