What happens when you add purchasing power into a product shortage environment?

I looked at something similar about a decade ago which was some camping log homes in upstate maine which was a beautiful place but the place did not have power (only generator) and heat was via fireplaces.

If you're investing out-of-state, you're really going to want the buying power and reserve cushion that 100K gives you.

Marketing Techniques: What marketing techniques or platforms have you used to showcase your track record and attract investment interest?

One tool I already have is PropStream, which I know can be incredibly powerful.

Alternative strategies: Are there techniques or approaches better suited to markets like this where rents are so low relative to property prices?

If you desire to get it by all means go for it - knowledge is power - but thats knowledge you pay for that may or may not pay off for you.  

house hacking is a powerful way to get started.

If you co-sign, the loan will consider both your incomes but also both credit scores, so her credit could impact the terms or buying power.

I learned many of my techniques from Brian Burke and The Hands-Off Investor.