I am in the research/design phase of making my own neoprene/painted tail.

Important info:
I am 5'8"
I am using a Mahina (32" wide at widest point)
waist to floor is 43.5"
hips 39"
waist 26"
waist to end of Mahina 68"
I am planning to make my fluke slightly oversized (by only a few inches) to allow for velcro closures at the bottom - I want to be able to remove my Mahina and use it separately

I am planning to get a turquoise/mermaidy green fabric covered neoprene (leaning toward 2mm thick). Obviously it is significantly cheaper (and less wasteful) to order 1 sheet rather than 2, but I cannot for the life of me figure out how some mers are able to cut a whole tail from one sheet. I've tried graphing it out and there's just not enough room for my hips and the Mahina. Is it a combo of my height/the Mahina size? Are most people cutting the tail body and fluke separately and then sewing them together?

How did you do it? Or did you get 2 sheets? Help!