I bought my wife a bamboo evoke 7'11" she loves it. At 5'5" and 62kgs she finds it plenty stable enough and at 9.5kgs OK to carry.
have a look at the surfboard warehouse online
if I had to buy another I would go the carbon as its lighter And at $899 a bargain.
if you want people to play on the thing up to 90kgs, then go a larger size - maybe the 9'2" or even the 10".
i find the carry strap makes it easy to transport to and from the beach, rather than using the handle. My board always feels heavier going back to the car