I got a Slimline Dish going on an office building in downtown Chicago. The building engineer is being a prick and won’t allow me to install a proper non pen mount and says to use a 1.25 inch steel pipe from another satellite install. The pipe is solid and has zero movement. I remember seeing a website where a company had all sorts of adaptors. Trying to avoid using the muffler clamp method IF possible. The guy wouldn’t even let me take a picture as some airline owns the building. Any help will be appreciated.