I was quoted $350 by one shop here, materials included. I was quoted $60 by another (plus $48 for accordian boot). I took the $60 shop and got a $60 job. I had to reseal the accordian boot with silicone, since then it has held up fine.
I say do not cut up that new(er) truck, I'd only do it to trucks worth less then $5,000. But if you have a ton of money to throw around, go for it.