100r Live Sattelite Tourney - Blind Steal turns into 2pair

[herbstl]

45 players left - 22 get a seat to the 2000 Euro Buy In Main Event.

My Stack is a little over 14.000 (12k is avg.)
Blinds are 400-800 with a running ante 100

I came to this table 20 Hands ago, and never had the chance to steal the blinds - so I decided to attack the weak tight BB with any 2 cards if there is a chance to steal.

I am on the Button with J5o and everybody folds to me. I make it 2000 to go. BB thinks a while and calls.

Flop is J57r - BB pushes - he had me covered.
Hero ?

The BB never made a Move, while I am on the table, so my thoughts were that he had a Jack with at least good kicker.

So I have 2 questions:

Given my reads, is it good to try to steal even with J5 in this situation or do I have to wait for a better hand ?

Is it good to call in this spot, even when I have him on a lone jack ?