What do you put him on when he bets out allmost pot on the turn? Is he strong, weak, draw?

What was his stacksize to begin with? Was your table fulI of what you think are online players or were they primarily live players? I think the open with 33 is fine, but I might make it a bit bigger like 2.5-2.7x if the table composition were mostly live players since most of these guys in my experience don't really like folding to a stinking little raise, especially in the lower buyins.

On the turn, not sure what that turn lead means on what was essentially a blank (has he done this before?), but I would think it's probably  a KQ/QJ type hand since he just checked the turn before when he had complete air. It's possible that it's a draw but not likely since he probably check-calls (or even CR) that rather than kill his hand's value by leading out and having to fold if he gets shoved on… so I'd probably just call here and try to get more value on the river from him, since like you said he's probably not calling a shove on the turn with AQ-type hands anyway.

Sorry if I'm rambling a bit that's just how my posts end up sometimes when I try to factor in too many variables

Ya, this seems like the perfect spot for the tank shove.  Feels like he has a middleish strength hand he is trying to protect.  It obv stinks when he wakes up with the top end of his range but there's a very good chance he's never folding his combo draws so I'd go ahead and shove making it look like you aren't sure what to do with a flush draw.  I think opening 33 is kinda close utg at 8 handed table…..would depend on other stacksizes and how table is playing.