Many of your questions are like asking the waiter at a restaurant; do I want chicken or fish? 

I am trying to figure out how fishing is a top GDP driver in South Dakota.

Between hay, timber, maybe plant an orchard, berry patch, pumpkin patch, Christmas trees, grow other ornamental or fruit trees for sale, maybe cabins or a couple RV sites or even some rustic campsites, a fishing lake, there are so many avenues to make $150 here or $500 there i think you could make it pay for itself over time

I think the important thing about being a new buyer is to talk to at least two or three banks and starting a relationship about 6 months before making the initial bid for a mortgage (especially because we are both pretty small fish in this lake). 

Small deals make small money and the big fish buying buildings.

Then when that one 2 week long (big fish) come along, your Calendar will be the only one open.

Teach yourself to fish.

I would consider stretching that out to every day for a week, maybe blast some really loud metal, heat fish in the microwave, constantly talk to her about your eviction process, or whatever you can to annoy her and scare her off.

Up until now, the landlord used the pasture for storing large oilfield equipment, round bales of hay, an RV & his fishing boat.

You'll tend to see a lot of older homes here that need updating, so if you don't mind rehab, that will broaden your scope.I've heard great things about San Antonio and Memphis.