Late Stage, low M: Push ATo in SB against raise from HJ?

[Tackleberry]

Full Tilt Poker
No Limit Holdem Tournament
612 players started, about 45 remaining, avg. 40k
Blinds: t800/t1600
(Ante: t200)
9 players
Converter

Stack sizes:
UTG: t99782
UTG+1: t16626
MP1: t20495
MP2: t16305
MP3: t20197
CO: t8406
Button: t9465
Hero: t17805
BB: t23225

Pre-flop: (9 players) Hero is SB with A[img]/images/graemlins/heart.gif[/img] T[img]/images/graemlins/spade.gif[/img]
4 folds, <font color="#cc0000">MP3 raises to t4800</font>, 2 folds, Hero ???

Just saw about 35 hands from Villain, he never stole the blinds, raised 3 hands, never limped. Is this an easy push anyhow - regarding my dwindling stack?