Hey @Easton Curtis. I think it's great to acquire properties by living in them first. If it were me I, my first option would be a small multi family (2-4 units) and then a SFH if I couldn't find one that the numbers worked for me. There are lots of loan options out there, your first move is probably to speak to some local lenders to see where you stand financially and what you can afford/how much you need to save. After that, when you start looking at properties you'll want to analyze them to see how they perform both while you live in it and after you move out.
It is definitely possible to have the rental property when you are out of state, I would just be looking for a property manager and factor that into your analysis. If you house hack a duplex it will also get you somewhat accustomed to landlording for when you move away.
Regarding using your Roth IRA, I don't think it's a bad idea, it just comes down to the property and what the return will be vs what return you anticipate getting in the IRA. I would guess that you could make a better return on a house hack than what your IRA might get. Also, I'm not a tax professional, but I think IRAs are first in, first out with regards to funds so you might be able to take out any contributions you've made without penalty or tax.