What exactly are you looking for…a construction loan? Do you own the lot and are going to build the house yourself, as in be the GC? Or do you own the lot and looking for a builder to build your custom home on it?
Rural 1st allows self-contractor. Have to prove you are qualified (skills) and they'll want 25% down or in equity (land / appraised final value of build vs bid). Go through you local Farm Credit (search on Rural 1st website).
Owner occupied construction gets favorable terms and rates. This is due to the fact owner occupier commercial real estate does not count against tier 1 capital ratios of a bank. You may qualify for SBA as well. Typically you can get a longer fixed rate term (7-10 years often times), a longer amortization and generally lower interest rate pricing than non-owner occupied. I'd speak with a local community banks commercial loan officer.
I think he's looking for a lender to finance him building his own home rather than with a traditional builder. I may be reading it wrong though. I know some of the SouthStar folks and they, like every other lender I know of, require a qualified home builder.