in bed fuel filler ideas

[1972BackInBlackC10]

I have a rear mounted fuel tank with the filler neck in the floor of my box. I have the the small pop up filler that comes from lmc that you have to unscrew, but I'm short and have trouble with my hands so using it is pretty much impossible for me.

I was thinking of some type of flip up door I know I saw one somewhere but I cant remember where, what are you guys using id like to get some ideas maybe something like a door that pops open with a stant gas cap you put the nozzle in. show me what you are using