Hi Nicolaas,
Great post and I like your ideas. I work as a Mortgage Loan Officer for a big bank, so hopefully I can help with your situation. First off from a fellow veteran (USMC) thank you for your service, glad to see you're taking advantage of some of the benefits Uncle Sam offers us.
Reference your situation, a way you could work out financing as you mentioned is to do a conventional mortgage and have your father listed as a non-occupying co-applicant. Essentially you would occupy the home as your primary residence and your father's role would be to assist you in gaining financing through qualifying his income, assets, etc. The benefit to this is your loan would be for a primary home (Versus investment home, etc) which would allow you more favorable rates and less of a down payment requirement.
Given that you are in college, have you considered a combination of a live in flip and a rental? For example, say (perfect world) you find a home after lots of searching on the MLS, you feel is undervalued. Let's say this home needs a little cosmetic work, which is why it's also not being sold for a premium. Let's also assume you get this home under contract with your dad and eventually close escrow. What if you then rounded up a couple of your fellow veteran/college buddies and invited them to live with you and in exchange with their help in renovating the place, you offer a good deal on a room rental?
This would allow you to fix the place up and hopefully get some good equity out of it, as well as "house hack" by renting rooms to friends. AND bonus, these friends also are your no-charge handymen who help you build equity in the home. Just pay them in beer once in a while.
Hope this helps. If you have any other questions don't hesitate to ask.
-Tony