The complete tire mount assembly cost me about $100 but that's going to vary depending on where you get it from. That alone is what is going to determine what the entire job costs you. Everything else (stainless hardware, black silicone, etc) should cost you no less than $20.

I'll second that estimate on the cost by saying that $100 for the mount and the liftgate bracket is hopefully the upper end. When I was shopping around for one, the only one I could find was for $100. They did throw in for free an airbag sensor though so perhaps more like $80 for my case? I did see that at the U-pull yards in Spokane they'd sell them for about $25, that is if you could find a Blazer that still had one on it.

So less than $200 bucks... Sounds great, thanks y'all

I'm looking at doing this in the Spring.
So far, I've spent 20 for the carrier, and maybe $6 for a can of hammered black spray paint. I have some black silicone already, but still need all the hardware.

I would see about a thin rubber mat to put in between the carrier hinges and the body of the truck. Itll help seal it to the truck, and help prevent any liquid into running into the drilled holes. I found my silicone did not last long after I applied. So I was glad to have installed that rubber. As well, if you have the one piece tail gate, CUT THE BRACKET TO FORM AROUND THE HANDLE, I cut it flat, and the bottom rubber of the swing portion does not line up right. It rattles like a loose muffler. I will post a picture tomorrow of mine.