I would look at wisp as an alternative comparison when talking to realtors. 

The cabin sits within a 15-20 minute drive of most popular activities that RRG has to offer.

Am I approaching this the right way, or am I missing a better alternative?

In no particular order I have listed some of the most popular markets for out of state investorsCincinnati, OhioDayton, OhioToledo, OhioYoungstown, OhioCincinnati, OhioMemphis, TennesseeSaint Louis, MissouriIndianapolis, IndianaDetroit, MichiganErie, PennsylvaniaLouisville, KentuckyMilwaukee, WisconsinJackson, MississippiEach of these markets is popular with turnkey investors because of the low barrier to entry, high rental demand & high rent to price ratio.

Alternatively, there are high-yield online savings accounts like Marcus or others - the difference is that banks have some inherent risk, thus the FDIC insurance. 

Can anyone recommend a good alternative to Quest Trust Co, now known as Inspira?

If you are the lone supplier of a specific housing product and there's pent up demand you will absorb your units quicker and have tenant stay longer given the lack of alternatives.

Alternatives to ConsiderIf you want to involve an entity for liability protection or other reasons, here are some potential approaches:Assume in Personal Name and Transfer to Entity:Assume the loan in your personal name and later transfer the property title to an entity.Important: Transferring title may violate the loan’s due-on-sale clause unless explicitly allowed by the lender.

The alternative I had pursued the last two years was hard money lending.

An other alternative is VaultLocks keybox that allows for a temp.