Gray at 32 seems to be the "pick" of that bunch, 15 goals in 59 games at Champ level over the last three seasons, 8 in 32 appearances in Greece last season - I guess Bulut would have a good idea if that is a decent return.
Lyle Taylor is 33 with 12 goals in 71 games at Champ level over the last three seasons.
Chris Martin is 34 with 19 goals in 102 games at Champ level over the last three seasons.
Uche is 28 with 5 goals in 38 games at Champ level over the last three seasons, but played 15 in Turkey last season without scoring.
Connor Wickham is 30 with 1 goal in 12 games at Champ level over the last three seasons.