You're skinny as pigeon leg, go as small as possible.
5'2" or 5'4". That thing holds so much volume because the deck is so thick and the rails are pinched so much. Definitely not over 5'4" otherwise get a long board.
I'm only 5'6" but stocky 70kg. Tried 5'4" few weeks ago and it was more than enough, I wanted to try 5'2" but they didn't have one to try.
There were few second-hands on the net if you look carefully. Good luck!