well to tell you the truth, I bought one for cheap from our county shop but then i got offered quite a bit for it so I sold it cuz I made quite a bit of money off it so now I'm gonna build one, it would be the cheapest way. I got the part number off the stack before i sold it, but i forgot to get all the measurements and angles

I do have some pics of it though so hopefully i can look at the pics and build the 8" stack alright. here is some pics of the stack i had before i sold it, it wasn't hooked up, i just had it sittin on a bucket to see what it'd look like.
the piece on the left is a piece of 8" stovepipe i found in my basement that I was gonna put on the bottom to make it 8" from the bottom of the bed up, but if i build one, i will make it longer. Now i'm just tryin to find some 8" exhaust pipe, anyone know where to get some???