So, there's a lot of info there, but there's also a lot missing. First of all, unless I'm mistaken, you can't use an FHA loan for an investment property unless you're planning to owner-occupy. Secondly, FHA loans don't have conventional PMI; they have instead MIP, which is paid in some combination of upfront points and potentially some extra monthly expenses.
You can do a lot of reading about the different loan types, advantages, and disadvantages here and elsewhere. I just read a good summary of them in Brandon's book on investing with low or no money down (available here on the site).
If you're planning to owner-occupy, FHA is probably a good way to go, but realize that not all properties qualify for an FHA loan, so you're limiting yourself. You can also go 5% down on a conventional loan if you owner-occupy, and you'll have ten times more properties to choose from (this is what I did on the place I closed on two weeks ago).
If you're NOT planning to owner-occupy, you're gonna want to get really creative, because you don't have the reserves to buy anything but a 40k house (in good condition). So you'll need a partner, seller-financing, or something unconventional.
Lenders will definitely quote you different rates: it's worth shopping around. They should be able to tell you what rate you'd qualify for if you know your credit scores and 1099/W2 income (which means they won't have to pull your credit to tell you, which means it shouldn't hurt you). Some lenders loan their own money and some sell the loans to giant companies like Chase, which somewhat limits what they're able to tweak on the loan. I've used Movement Mortgage in Nashville recently, and they were excellent. PM me and I'll give you the contact info for the guy over there I used. He knew his stuff, closed quickly, and saved me some cash on the mortgage payment and on closing.
Insurance: call a few brokers and tell them what you're doing and get them to give you a quote. I have a great State Farm agent in Nashville, but on this latest property Safeco quoted half what he did for the same coverage, so I went with them.