I'll eventually be in the same boat as you bro(when I get a truck haha), I haven't heard much about Coy; met him, seems to be a great guy, but I don't know of any work he's done(have a friend who got a Spartan and exhaust from him, tried to get my grandpa to do the same, but thats it). I think the best/safest thing to do is go to the nearest sponsor, kinda keeping the work in the family so to speak, and you know they're all great shops and can talk to them as a person, not just a customer, especially for bigger work.
That said, I'm pretty sure Coy is more than qualified, and you'd get good service.
Where ya located? I'm in BR, about 20mi(I think) from Coy's shop.