Nasty preflop spot with 77, deep in the stars 5r

[Yoshi63]

This is a hand from tonight's 5r on stars (35k guarentee). At this juncture there are ~35 players remaining and the avg stack is 420k.

No concrete reads on villian, other than that he had been relatively active for the 1 orbit I've been seated with him, once calling a shortstack's all in with 53o (getting about 2-1 from the BB).

PokerStars No-Limit Hold'em Tourney, Big Blind is t16000 (8 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

SB (t89755)
BB (t179318)
UTG (t704558)
UTG+1 (t317232)
MP1 (t475128)
Hero (t348598)
CO (t238930)
Button (t456754)

Preflop: Hero is MP2 with 7[img]/images/graemlins/heart.gif[/img], 7[img]/images/graemlins/club.gif[/img].
<font color="#666666">3 folds</font>, <font color="#CC3333">Hero raises to t46464</font>, <font color="#666666">1 fold</font>, <font color="#CC3333">Button raises to t455154</font>, <font color="#666666">2 folds</font>, Hero...

I need to be about 43% against his range to make this call. What type of range can we put him on here? How much of a random-donk-resteal-range can we include?