Demon Gas Cap custom options/builds

someone on here did modern car door handles and fuel door on a Duster that were oval shaped and it looked killer. i think he said he used chevy stuff from a junk yard car.
something like this,
Hagan Street Rods 90OVQ 90 Curve Series Fuel Door, Oval | eBay
i think he did it to remedy spilling gas on the quarter every time he filled up. I have always wanted to do something similar