I fish with a 13 foot Viking, sit on top. It is the sauce for big water (made for saltwater) - Like some others have said, sit on top is the way to go.
Wife has a 10 foot Heritage Angler - it gets "loaned" to whoever is fishing with me, and it's a solid kayak, but if I had it to do again, I'd get the 12 foot model. Do that and get a 100 dollar seat and you're in business.
I used to haul kayaks on the roof of the SUV - the 50 dollar roof racks from Amazon work great. There's some easy to learn tricks to loading/unloading, if you need any advice PM me.
Will do and thanks! Seems like sit on is the choice. Also a good wide one. I have the rack figured out on the Jeep TJ.