The Merits of Check Behind on the Flop In a HU Blind Steal

[toss]

Folded to me on Button, I have Q8s, I raise, BB who defends his BB liberally calls.

Flop 235r with one of my suit. He checks, I autobet, he auto calls.

Turn is J. He checks, I check behind figuring he'll have K high, A high, or a pair more often than I have him beat.

River is 5. He instabets. I fold.

Villain seems to be instacalling all my blind steal flop bets and instabetting the river evreytime I'm checking behind on the turn. Should I instead just check behind on the flop and save a small bet? If I do I can see villain betting out on the turn a lot. My counter strategy against this would be calling down with Ace high and sometime seven King high. Does this mean I should limit my Blind steal hands to A high and K high should I plan to check behind on missed flops? Blind stealing is hard.