Raising small pairs on the button for set value. (theory)

[ReadyEddie]

My question is simply how many limpers do you need to have to raise a small pocket pair strictly for set value. Im also assuming you're not gonna get limp reraised. But you might get 3 betted from the blinds.

HFAP or SSHE says you need 1:5 odds to play the pair for set value.

The problem with raising them on the button is the chance of the blinds not coming along.

So whats the minimum number of limpers you need to raise?