Thank you for the reply! I have thought about building one but I thought I would try here first.This looks like it could be fabbed up really easy with aluminum stock and very little in terms of tools. A vise, grinder, cut off wheels and drill.
Flat piece of stock for the base and two pieces of thinner stock in an “L” shape screwed into the base. Shaping done with a drill bit and grinder for the hooks the cover attaches to.
Otherwise, there are guys on facebook parting out their trailblazers or swapping engines that will have this available