6-max NLHE, stacks are about 120BB effective

I open to 3BB from UTG+1 and the BB flats. The flop comes 9sTsJd and VIL checks to me. I think I want to bet all my two pair, all my sets and my straights on this board. I think I want to bet my overpairs without a spade, and maybe check my KK and AA with a spade. That’s 31 combos straights, sets, and two pair so I’m looking for 60ish bluffs. If I check my straights with a spade that’s still 24 combos of value so I need 48 bluffs. Am I thinking about this correctly?

My UTG+1 opening range looks like 22+, AKs-A7s, A5s, AKo-ATo, KQs-KTs, KQo, QJs-QTs, JTs, T9s-T8s, 98s-97s, 87s-86s, 76s-75s, 65s, 54s.

More generally, how do we balance our ranges on super wet boards with deep stacks?

Your strategy should be a function of the BB's range and response to a cbet.

If you wanted to be balanced here, basically bet anything reasonable half the time for small sizing, top of your range most of the time for mostly a small sizing and probably some big sizings at a small percentage, check whatever is leftover.

You wouldn't "always" bet your 2p + unless you were exploiting villain and/or not worried about getting overbet led into on a variety of turns vs what will end up being a capped range.