I blame myself. They told me there were no instructions in the kit but I told them everything I'd read said the install is very straightforward. I assumed wrongly they could figure it out. Don't blame them for not wanting to cut into a $100k truck with no instructions. I would suggest that brawlerfab post all their install instructions on their website to avoid situations like this and to give installers an opportunity to review them in advance and plan any tools, shop-time, etc. needed (like a 7" hole saw).
Thanks again to the forum!