Crazy Briggs filler neck-needed

The tank on my 5 HP Briggs is in decent shape except the neck is rusted out in the thread areas.
Would anyone happen to have an old rotted fuel tank that has a good filler neck on it? I am considering brazing a replacement filler neck onto this otherwise decent tank.
it would be cheaper than buying a new or used tank
Thanks in advance.
It looks like your picture shows a short tank common on the low hp engines, which works great to clear the tire on minibikes. People are giving away edgers with those small Briggs engines all the time. Maybe keep an eye on craigslist FREE section.

We see a lot less rust out here in California though.