Knights OR Gamble + $64k?
Knights, injury is a risk but is capable of big scores, could be the Beau Waters of 2011, I don't see Gamble consistently getting games and performing well at St Kilda. It could depend on what you can do with the remaing 64k though?
Sylvia (2nd Forward) + Harris (bench)
or
Boak (5th Mid) + McKernan (bench)