What sort of sewing machine

PFAFF and Merrow built the industrial sewing machines I have used and worked on in the textile mill. Wife has ran industrial machines most of her career. I don't know what brands.
Two pieces of vinyl, canvas, or any upholstery grade fabric is too much for household dress makers machine. Add a welt bead in the seam is waaay too much.
Parts and service for any of them can be outrageous.
The Packard on Ebay may be a good buy. I didn't see what year model/how old it is.