With your height/ weight you would likely feel comfortable on anything in the 39"-41" in range.
Some great brands to look for would be Remote, Water Monsters, Obscura or Virture. All of these companies make a solid wood concave and besides Obscura are wakeskate only companies. Obscura is a sub bran of Liquid Force but ran by two amazing wakeskaters who have been around a LONG time, Aaron Reed and Danny Hampson. You can also find a lot of boards on closeout prices right now from other brands as well.
The Ronix Hoverboard was Dieter Humpsch old shape and he would blast this thing wake to wake. Its a solid wood concave with a sintered base for any rail/cable riding you might do. It has a great weight to keep the board with you while going wake to wake along with the mellow concave.