There are some good floaty freewave boards around and the odd jumbo quad - I'm similar weight and my OES 100l x 64 (probably more 105 L - in the picture) is pretty easy to up haul - sail a fair bit of light wind waves near home - its still wave rides OK but you certainly lose a bit of snap and speed of direction change from a smaller wave board - but gets you on the water
The floaty wave boards sell pretty quick - if you want something specific a custom might be the go - but you need to know what ya want good luck.