good or bad push

I am doing the hand from head .5/1
Short handed I am bb qh 5d
Everyone folds to sb he calls
I check

Pot 2
flop comes qc 9h 7d
sb checks
i bet 1
sb calls
pot 4

Turn 5c
sb checks
I bet 3
SB raises 3
I call
Pot 14

River Qs
SB bets 12
I Push allin 80
SB calls 80

Good. He obviously liked his hand so help him get it all in there.

You get lucky and beat 86o?

w/o reads it could be anything
slowplayed set or two pair, 86, AQ donkage...

even though Q9 or Q7 are possibilities, you're not getting away from this. So it's a winner most of the time, if you can get the call from a lesser hand, you push.