Congrats on the purchase, the car looks nice, seemed like there were a lot of TR4s that color in my area when I was a young man, used to not like the color, but it has grown on me.
The gas filler work for its purpose no matter how you orient it, and many of them are mounted the "wrong" way. Easy fix if you wano to change it. The will often turn pretty easy uf you just twist it. As set up you can pull into the gas station an fill up just as easily from either side...