Backwoods owners I need your help

Hey guys i'm looking for anyone who owns a bws that would be willing to help me with some measurements. Im looking to start a clone shortly and i can only guess on some of these measurements. Im trying to clone the competitor so if someone owns that model it would be great.

exhaust stack my guess was 2" x 4"

distance from ceiling to false wall allowing heat from firebox guessing 1"-2"

thickness of heat diverter 3/16", 1/8", 1/4"

height/width/depth of firebox

air inlet on side height/width

square tubing used for frame I think its 1x1

I appreciate any info if anyone has up close pictures with a measuring tape maybe showing dimensions that would be awesome.

thanks

I've been there I'm looking for specific measurements that they don't give on the site.

Competitor Model

Outside dimensions:
24" deep
55" tall w/stack
32" wide

Inside dimensions:
20" deep
29" tall cooking chamber
20" wide

Racks: 8 - 3" apart
19 ½" deep
19 ½" wide