Here's a link to a thorough discussion on it, including Kent's response on spec's. Go to post #15. There maybe more after that, I didn't feel like doing your work searching.
https://www.turbodieselregister.com/forums/showthread.php?t=106471&highlight=weld+wheel+offset
Yes, he probably ought to have a section on his site with 3 or 4 pic's and the specs so guys can look down the line at the truck and see what they're getting.
I saw his truck at the "Festival in the Foothills" in so cal this year. I already had the suspension on, and couldn't be happier with it. If you want to know what the wheels look like as far as wheels sticking out, find yourself a truck with 315's on it, and that's what you'll have. That's what's on my truck, and the profile is next to identical. The tire looks like it sticks out because it's a wider tire than stock, but it'll be like the 315's you see. I'm happy with those in terms of size and profile, and how they sit under the truck. As far as why I think they're worth it, I like the clearance the 18" wheels give you from the brake calipers. If I hit something down south, I'd like to know I'm not skeeroo'd if I catch a corner of the rim. My ride and towing with the BFG's I have is excellent.
Pic's don't do it justice either... not even close. The wheel is reeeeeaall nice. I didn't want to do 3400 for the change out after just buying my truck at the time, so personally, I'm waiting to run my 315's down a ways, and then will buy a set... but trust me brotha... pic's don't do it justice
sarj