Hi Scottie,
I dont really think this is the greatest flop to float on. Two reasons mostly. 1) A good player will put you on the draw when you call on the flop and be far more inclined to fire a 2nd barrel on the turn if it blanks (which will you will probably have to fold to). and 2) The K is a bit too likely to have hit him. It fits a LOT of hands he would raise with preflop like AK, KQs etc. Your probably going to have a hard time bluffind him off top pair.
I find its a more profitable play on boards where a flat call is really really scary. Something like QQx with no draw. Or also on a board which you dont really think is likely to have hit the pfr, something like T53r.
As you played it btw I love the river bet. I dont like the original float attempt like I said but I give credit to your river bluff. Hes crying into his keyboard at that one

. You probably get lookd up by KJ/T w J/T of spades. He folds most other things I would think.
Jez