You all seen this? Trans tunnel from uscartool

It comes down to your skill set and available tools, sure if you have the skills, aptitude, time and tools you can make your own for a lot less money, but if you don't have those things then its not a bad deal. Many custom shops are going to charge $75-$150/hr shop rate and to have them make this is going to be a wash at best and in all lowlihood is not going to fit any better.

I agree its expensive but it fits a niche, if you dont like it, then don't buy it but at least it is there for those who need/want it.