QQ64

stick it in, i think theres a small chance he can fold 73,A3 that makes it to river.

Check. Check turn imo.

I'm fine with turn play against this villain and with this blocker and further 2-3 outs when behind. Can see him calling again with a hand like 2345.

With the pot being this big and villain described as loose and passive, I don't think we can rely on him folding many better hands on the river. If we bet, it's for value, but there's not much worse that gets here. Gotta check the river and consider calling. He's likely to give us a free showdown a lot of the time and may not bet his straights.

I'm fine with everything so far. River I can go either way, but against a passive player, I kind of want to check/fold.

Result: Hero jammed and he tank folded. He really wanted to put it in.

imo you got lucky to get as much action as you did from a hand that was close to drawing dead, lucky you didn't get outdrawn, and then lucky again he couldn't find a hand on the river to beat you. but that doesn't mean you played the hand badly or anything