*Grunch*
I would 3b to $8.50, I think $7.50 may be a little on the small side.
I would also bet this flop a decent % but bet smallish, say $8 and shove turn. If I was not betting this flop I would not c/r as it'll fold out too many hands that we beat and we shouldn't be scared of any draws in a 4b pot. Whether or not I would c/c donk turn or c/c c/rai turn depends on player type.