This opens you up to advance on your plan or pivot into an alternate path.  

Factory built with its potential for less material waste was attractive.

Are there alternative ways to do this that are more hands free for me but still effective? 

There is also I think the 500 hr material participation requirement for the $25k PAL to take that onto your1040. 

Perhaps emptying it so that it can attract an owner occupied buyer is a good alternative or hiring a PM company to off load some of the work there for you.

How much would it cost for material and labor for a 985 square-foot house?

We want people to have confidence in the materials they want to utilize.

The contractor is required to provide a 1 year warranty on labor and materials but replacement contractors are difficult to find because they have to warranty all the work ... even from the OG contractor. 

Might be able to get a contract with the buyer of the cherries and thow some cash at you upfront for signing a agreement to buy the crop but I don't know what the alternate bearing looks like on Cherries in Washington and the brokers may not be willing to pay upfront in that area... or a upfront lease payment from the renter... 

Given that it's almost a 50% increase from the existing rent price, you might want to set a timeline of 2 or 3 months before it taking effect so they can find alternative housing if they plan on vacating instead of staying at that price point.Another option could be to ask for the rent increase, but offer something in return.