I have a 30x36 from Miracle Truss, not sure if any of my plans or the installation manual would help? I had to hire a 3rd party engineer to review and update planned building schematics from Miracle Truss to then give to the county for approval [ mainly for snow and wind load ]. My assumption is you might be in the same boat?
Miracle Truss has been out of business for a few years now.