With no fold equity you would need about 48% eq to raise/gii on the turn. Against a continuing range you seem to have somewhere around 45-50% eq hot and cold, but effectively less than that since he's not jamming everything he continues with but will instead flat and play river with some hands which ofc reduces your EV by quite a lot.

This means that when you raise and he doesn't fold, you're at best breaking even and at worst losing a decent amount relative to the pot (SPR is so high that stacking off with a couple % too little eq is pretty expensive), so the money you'll make on the raise comes from fold equity. Like you said it seems unlikely that you'll have very high feq after he pots it. Haven't looked at the numbers very hard but with meh fold eq raising seems marginally +EV but not a spectacular play. Calling on the other hand seems intuitively very +EV so I think that's indeed the best line.

Very tough to get called by worse here / calling the shove and be good.

i dont like i(call) because it will give odds to call for BU when he has FD or wraps and we need lots of protection here.

i don't like ii(raising small) because it still gives odds to call for SB with anything vs our range. but I like this option when we have good wrap+NFD and stuff.

also i think he has more draws than sets because we block 88/TT and SB's calling range vs BU open does not include many 22/55 if he's a reg.

I like pot/call.

Results please