I used the stuff from Amazon. It works fine, and it looks like in your case it is half price. Mine has been on my GF for almost 2 years and does not leak any smoke. They will need to add an !/8 spacer in the door when they weld the hinges on that way the 1/4" gasket will compress and seal. I usually pre-gap my door 1/2 the thickness of the gasket. They will likely know that already, but you need to let them know how thick the gasket is.
ie. if the gasket was 1/8" thick I would stick a piece of 16 gauge (1/16" thick) behind door to pre-gap etc...