Nozzle orifice size for roof pump?

Np. If you plan on being in business, ditch the first 2 suggestions and buy the proper equipment as soon as possible

I’d just order from Southside equipment or another one that ships here. The duty fees will be less than paying for shipping to @DisplacedTexan’s house then all the way to your place. I’d order a few things just to make it worth it if you’re able to.