At your weight u definately have a lot of options.
U could also... Spend your $ on a comfy vest & a nice paddle (Important)
Post your remaining $ on here.
Something like: "I have $650-$800 cash for your nice used angler kayak.
Let me know what youve got. U keep your vest/paddle I have my own"
Caution: used yaks r as is so test paddle before u buy. Look the bottom over well and make sure Its not cracked/leaking.
Take a friend who knows what to look for. If it feels wrong trust your gut. I recommend a 240 paddle.
Or, call Mariner Sails of Dallas. They have good deals all the time and the best staff. If they dont know. They will find out for u!
Ask them about their demos too and set up a test drive ;-) tell em zombie sent Cha. You may want to layaway a nice new yak with em. Mariners yaks come with warranties. Best of luck to ya