You can order a pair of 1" spacer from Burtman Industries for appoximately $150, depending on where you live. That's for the front only. If you ask for a set on the rear as well, the price will obviously go up.
The $150 price for the front only spacers was my price because of where I live. The price may very depending on where he has to ship it. Also, Jason told me last week that he has to have these custom made and can get them in nearly any size. So if somebody wants a 1 1/2" spacer instead, then that can be made as well.
He has a phone number on his website that he told me he prefers to be called out when having custom orders submitted so I'm sure he'd appreciate any other intrest in his products.
Good luck with your modifications and I'll try and post some photos after my spacers arrive and get installed.