Don't forget to budget for a comfortable PFD, paddle, and whistle. Take it out a few times before you decide what else to spend your money on.
X2 on this. Get a comfy PFD and nice paddle. Otherwise you'll spend more in the long run replacing crappy one due to trying to go cheap for now.
I have an FS12T and love it, it's big and bulky, but works wonderful for a bigger guy like me. I can get that thing movin!
But I would look into the D10 and D10Ts(below)
They are slightly smaller, faster, and lighter and will hold a guy your size easily, plus they are $450 new.