Calling flop to hit bottom set

[scott111]

2/4 B&M (TStone)

1/2 hour in, high turnover on a Sat night so no reads at all. I'm pretty new to B&M play but the table seemed unbelievably loose and weak. Seriously half them didn't even know rules. I go to Vegas soon, is this what I can expect?

Preflop: (10 players): Hero is SB with 2 2
7 limpers, Hero in SB completes, BB checks

Flop: (9 players, 8 SB): K T 5 rainbow (9 players)
Hero checks, BB bets, 7 call, Hero calls

Normally I'm c/f with underpair and a large field, but what I'm thinking of is 17 to 1 with excellent relative position. So I think I can make that extra 2 bets up the times I hit.

This is the real question of the post. How many limpers to I need to make this call correct?

The rest of the hand is straight forward I hope. If not please correct me!

Turn: Turn (9 players, 8 BB): K T 5 rainbow 2 (board in now 2-suited) (9 players)
Hero checks, BB bets, 3 call, Hero raises, 4 call

River: (9 players, 18 BB): K T 5 rainbow 2 9 (no flush) (5 players)
Hero bets <font color="blue"> </font> <font color="blue"> </font>