I’m also surprised. I recall all the threads about guys adapting tanks. How long was this in the Melvins website?
I just purchased this one https://restorationpartssource.com/...rick-15-gallon-all-classic-parts-details.html
I seen this while looking, and thought no way it was really the one. When I went to copy and paste the link it showed a different year model so I was skeptical. Now I'm excited.