The right wholesaler that knows how to properly calculate a SOW (scope of work) to gain the rehab budget, generate an ARV from local comps and not want to get rich on every deal is NOT easy to find....but, they do exist.

I am going to get hit with capital gains and state taxes(Idaho 5.8%)..closing on cabin on the 18th of Nov.

This first season is for you to gain hospitality and property management experience and reviews.

From there, you can utilize that team to gain experience and understanding into the market.  

Even if it does appreciate, the only way you realize those gains is if you sell.  

How much and what would I do with the gain on sale, and how does that help or hurt my strategy? 

Plus you typically should list on MLS to get best traction for your listing.Rentals are a bit different.

It takes a lot of work to find a tenant, your commision gained from the income should only be for the services rendered while the tenant is in the home ( in my opinion ).Some additional fees I can think off, are maintenances fees, for larger projects that require a lot of management and research.

only the appreciation gained during the leasing period?

Even though you feel you don't reach the full cash flow potential, you gain on making the lives of those families more comfortable.