Tank Coating

My dad has been working on one of his Beemers, that will need its tank coated...this got me thinking about an old SS50zk1 tank I had laying around.
When coated it would be usable again, if something could be done about the mangled filler opening.
And so this project began:

the original opening has been cut out and replaced with an original Honda flip-up cap that was cut out of a CB-motorcycle gas tank.
I never really liked the looks of an SS50z tank, but this really makes it a lot better.
I might even use this tank for my race project, otherwise it will be a spare, or for sale.