I agree a performance board is probably going to get trashed kiting. Too heavy they end up pigs. You need to find your lower limits of height for paddle in at your weight and the maximum width of a board you are comfortable performance surfing on. The shorter boards with some nose width work well as they end up balanced under your feet. ie you don't have to put a foot on the nose or change stance much for punting. I like them with larger fins. Everything is a compromise though. There is no magic board; but there are a lot that are super fun to ride. My favourite atm is the new 5'6" Emery shoe for all round... or 5'4" MC for forehand kiting in small waves. The 5'10" mulcoy is a great all round shape. The square patterns under the wax is clear grip that I wax over that still gives you traction when your wax spreads.
5'4" x 18 1/2" MC Danny wills rippa model (kite only)
5'6" x 19" Emery Shoe model (Kite and lower limit of paddle in)
5'10" x 18 Tokoro strapped (kite only)
5'10" x 18 3/8" stretch Mulcoy (kite and surf)
6' x 18 1/4 TDZ (I prefer to kite only in big waves)
5' 11" x 18 1/2" Emery Arrow model (killer paddle shortboard thats too precious to kite)