Stuck between a whale and a horse's ass

My favorite 1/2 NLH game has an interesting wrinkle: when a red deuce hits the flop, the next hand is just straight Omaha. And that's what happened the hand before this one.

Technically, the game is no-limit Omaha. (Foreshadowing.) 1/2 blinds but it's $5 to bring it in.

Villain 1 is my nemesis. He's personally relieved me of several hundred dollars over the last year. He's the best player at the table, and by God he doesn't let you forget it. It's like our own little Phil Hellmuth. He's also very personally tilted at me tonight because I had the audacity to — having already locked up half of a double-board Omaha bomb pot with the nut flush — river a set of Aces on the other board to scoop his whole stack. He has about $400.

Villain 2 is the polar opposite. Nice guy, but he kinda sucks at Hold'em and he's TERRIBLE at Omaha. He'll hang on to dry Aces forever, think any flush is the nuts, etc. Basically, the kind of player that makes you already think of paying your bills for the next month. He has about $500.

I cover them both. I'm hoping to get into pots with V2 and trying to dodge V1 unless I have a hand that just clobbers his.

Also, we're playing four-handed.

Preflop: ($3)

UTG folds, V2 makes it $5 from the Button, V1 raises to $10 from the SB, I call from the BB with 8♥ 7♥ 7♦ 4x since V2 is obviously staying in, and he does.

Flop: ($30) 9 5 3 rainbow

Checked around.

Turn: ($30) 6♣ (backdoor clubs available)

V1 checks, I bet $25, V2 raises to $100, V1 goes all-in for just over $400.

Well, ****.

V1 could have 87 just like me, but I hold a bunch of those. He might have a huge equity draw, like a set and clubs, or maybe, like, 8765 so he has the nuts plus redraw outs. V2 is calling off his stack with whatever fistful of crap he got here with. How often do I have to be right here to make this call good?