UTG = 15% RFI, CO 3b (total)= 10% (but estimate it to be around 15% in this spot)

Ran a simple OO sim with following assumptions:

Each player is folding everything but (AA, KK$ds, KK$B$B$NT:xx, KKRR, $0g$ds, $1g$ds, A$B$B$N$ds, RROO$ds), and with those hands I just assumed we were all in pre

So I got: 

1 player going with it 40%

2 players going with it 5%

FE = 55%

Equity v 1 player = 42%

Equity v 2 players = 32%

EV = .55(30) - .40(200-(.42)(410)) - .05(200-(.32)(600)) = 16.5 - 11 - .5 = +5

I think that the range I gave them to continue is too tight and they will have some more hands that dominate mine, but I think that the times that they call pre and incorrectly fold flops makes up for that and then some...making the play profitable. 

Is my view of the situation too simplistic? What else should I consider?

Would appreciate any thoughts. Thanks