Not unrealistic except for Tomlinson in that crew for just the 21 pick.
My thoughts are very close:
Bell for 21
Yarran + 20 for 12 + 31
12 + 21 for Tomlinson, Plowman, Lamb + Phillips
Kerridge for 40
Casboult for 22
PSD one of Lennon/Aish or best available
Draft - 1, 22, 31, 58
Trades - Tomlinson, Plowman, Lamb, Phillips + Kerridge
PSD - Lennon/Aish