Show Jacket Plus Size and Long

I have quite a few jackets but none of them seem to cover my butt. Does anyone know of some that are plus size (18/20 44" bust) that are long? I feel really weird that in all my pictures on the flat my butt is like out there LOL Is my only option to go custom or see if a tailor can lengthen it? I LOVE my AA motionlite but of course there isn’t much let out on those.
Thanks!

RJ Classics makes a long in their jackets, and I’ve actually found that the Kerrits mesh coats have good length and aren’t expensive. The Kerrits one doesn’t have the best shape/structure, but is comfortable and easy to take a nip or tuck where needed.

I have an xxl Asmar and it fit me beautifully as a size 18/38H. I am 5’3" and I had to get their standard size tailored as it was the old school fit where it covered a lot more.