You sed:

Range is pretty much a pocket pair or a Broadway. -probably leaning towards a PP

The flop, I did not want to get c/r and blown off my hand so I check behind. if they c/r you probably bomb bc a birron draws are possible here

Turn hits the Sb range alot, so I just call and plan to raise the river. -Maybe it does, but how often does he have more than one pair? Why are you giving him chacnes to suck out?

The River almost full pot bet I did not like. KT, JT with a club, he flopped the flush or had a set. Another iffy spot for me. -This is iffy bc you did nothing up to this point to better define anyone's range

Raising is no longer an option really since the only King I think he calls is AK, and since he is so passive he might even fold it.
So River call or fold? -I fold.