I am in the pre-planning stages of my 150gallon RF Trailer build. So far I have a tank and a dream! I have zero welding skills, but my brother is a Novice welder (small repairs on cars, fixed patio furniture, etc), so he will be doing most of the welding. For safety's sake, we will get the big structural welds done by a pro, but to minimize cost, will do as much DIY as possible. I have read pretty much the last 4 pages of threads, plus on other forums, but I have 2 outstanding questions (for now). 1) When talking about Chimney Pipe length, does that include the length inserted into the chamber? IE a 40" pipe that sticks into the chamber by 6", is that considered 40" or 34" as 34" is outside the cooker? 2) As a completely inexperienced Fabricator, what is the easiest way to make the FB Intakes. I am thinking cutting a big 3 X 6 hole on each side of FB with a slide. And then another smaller one on the door for draft into the CC. otherwise, I dont know how you guys are making the 2x2 holes, or drilling 3" circles without some heavy duty machinery.