Sorry to be pedandic but his record at this level is 6 goals in 46 games, and 10 goals in 45 games in League One. Not sure he's a "proven goal scorer at this level". That said, would rather have him than a 34 year old Robbie Simpson.
Would also flag up that he only started 19 for P*sh, scoring seven in those games. Not bad after the jump from non-league. Substitute appearances skew the stats. Agree with you that he's not exactly proven, but there's bags of potential there.