I'm currently engaged, and love the idea of making this small home livable again, and living in it with my future wife (wedding late next year).

They also provide other types of loan you may be looking for in the future (ie Construction).

This is probably the single best strategy, very easy to do and fund, low risk and is setting the foundation for future growth.

The fact that you obviously couldn't be bothered to even try to check before writing a lackadaisical response to my post does not speak highly about your future success in finding a workable solution to your problem.

Do you have a relationship with a local lender that would be more willing to work with you now & in the future vs. a larger institution to whom you're just a number and they don't really care about at all.

Housing is significantly higher in CO, but I would like to make my investments work there as I plan on moving to Aurora for work in the near future.

Assuming you've paid your student loan off and put the rest down on your new house, at some point after buying your new house, you could take out a small HELOC to be used towards a future investment. 

After working my company for 6 years I’ve come to a realization that I need a back up plan for mine and my fiancés future.

At some point (it may be too early), you will need to start thinking about business succession planning, and when that comes to play, understanding what your options are will be instrumental in helping you make a good decision for your financial future.

Also using the cash for future down payments.