Try to narrow down your options to the top 3-4.

Although I have knowledge and experience in my local market, I am most interested in some out-of-state options as I like those opportunities better than what I have locally but know little about where to begin evaluating those markets and the pros and cons of the different states.

Your budget of $600k would afford you a number of other options in the Myrtle Beach and North Myrtle Beach markets. 

I recently came across this "FHA construction to permanent Loan" option which seems almost too good to be true, so I wanted to get some input on how this works and where I might be able to find a lender.

I think owner occupied primary home financing can be some of the most favorable terms out there, especially with the low down payment option.

They have various rates to choose from but I am still looking for a bank with better options.

Yes - Multifamily DSCR Loans can be a great option for this - check out this recent article posted last year on everything you need to know about Multifamily DSCR Loans (generally for properties with between 5 and 10 units) including comparison vs. traditional loan options!

lets look at renting and refinancing options 

Hey BP Family, I'd love your insight on this.I'm currently weighing two intriguing options: house-hacking a 4-plex or venturing into the realm of MTR with a single-family home or duplex, particularly for renting to travel nurses.

Still, I would like to get the option from a respected member of this thread.