He's so cute! ...
sorry, soft spot for babies 
I think its awesome that you guys are asking so many questions, getting help, and trying to find a good herp vet. I would try posting in the Leopard Gecko Forum about finding a reptile vet in Michigan.
Leopard Gecko Forum:
http://forums.kingsnake.com/forum.php?catid=50
The warm side of the tank sounds just fine. Try to keep the cool side from getting lower than 74-75. Make sure he has enough hides, at least one humid, and that he's in a quiet place away from windows, lots of people, and drafts.
Without more detail its difficult to tell why Monty doesn't seem to be eating well. He looks skinny, but alert and not emaciated. Few week old crickets are perfect. Just remember to remove the uneaten ones from the cage because they will nibble on little Monty and can harm him. Some of my leopard geckos won't eat wax worms because they don't move as much as other prey. He should be eating the meal worms...maybe he gets "performance anxiety"? With shy ones, I always put dinner in, turn off the lights, and leave the room. Without me watching, they eat fine.
Make sure he is getting a 12 hour light/dark cycle if possible (ie, no bright lights at night and a quiet room). When you find a vet, get a fecal exam done to check for parasites (very common).
The best thing you can do is research Leopard Geckos on the internet and learn as much as you can. Incorrect husbandry accounts for much of the problems and illnesses people experience with their geckos. Fortunately, you guys sound like you're doing an excellent job of trying to help your little guy out! Leos are awesome geckos and well worth it -- very rewarding to own.
Good Luck!
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Too many Leos
1.0 feline "Spot"
0.1 canine "Tika"