Probably would be Parsons. Looking at his profile from NRL.com - I can't see too many being much bigger.
120kg + 201ht = 321total
...and he has played in 4 matches thus far.
<table cellspacing=0 cellpadding=3 width=354 border=0> <tbody> <tr> <td align=left>
</td> <td align=right>
</td></tr></tbody></table>
<table cellspacing=0 cellpadding=0 width=354 border=0> <tbody> <tr> <td bgcolor=#000000> <table cellspacing=1 cellpadding=0 width=354 border=0> <tbody> <tr> <td valign=top bgcolor=#ffffff rowspan=2>
</td> <td class=playerprofile align=middle width="100%" bgcolor=#ffffff>
Matt Parsons</td> <td valign=bottom align=right bgcolor=#ffffff rowspan=2>
</td></tr> <tr> <td class=playerprofileelem> <table cellspacing=4 cellpadding=0 border=0> <tbody> <tr> <td valign=top>
</td> <td class=playerprofileelem>
Born: 18 Jun 1973, Tamworth, NSW</td></tr> <tr> <td valign=top>
</td> <td class=playerprofileelem>
Weight: 120kg Height: 201cm</td></tr> <tr> <td valign=top>
</td> <td class=playerprofileelem>
Usual position: Prop</td></tr> <tr> <td valign=top>
</td> <td class=playerprofileelem>
Nickname: Parso, Parsley or Snozzel</td></tr></tbody></table></td></tr></tbody></table></td></tr></tbody></table>
'fan-baller