Which trade is best structurally for my team. Zorko, Swallow, NicNat?

[crowls]

Lots of potential problems.   Major unknowns are Mitchell and Ryder injury status.
My mid pricers are not on fire but not major issue
Would like to get in Zorko if I can.   

Def   S Mitchell, Hanley, Simpson,  Langdon, Langford, Georgiou,  C Cameron, Clurey
Mid  GAJ, Libba, Cotchin, Beames, T Mitchell, Tyson, Dunstan, Polec, Mcdonald, Ellis
Rucks Ryder, Sandi, thurlow, King
FWD  Danger, Roughie, Dixon, M Wright, Caddy, Higgins,  Close, Rohan

1.  Move Dixon to Rucks and bench Ryder hoping for only 1 week.  Wright to Zorko  (Upgrade to Pot Prem)
2.  Ryder straight to Hickey gives me cash for Cameron to Swallow.   (Upgrade to potential Prem)    Leaves me exposed if Mitch 3-4wks
3.  Wright to Zorko now
4. Ryder to NicNat now,  Wright to Zorko,  miss out on Swallow.

[Belegur]

Need to wait and see if we get anymore info on those injuries. Of those I think option 2 looks pretty good tho. Even If Mitchell is out for 3 i will think of holding, mainly because theres nobody I want to go to in the backs (I have swallow)

Your back rookies are a bit of a worry I think that might dictate who you bring, atleast with thurlow and Dixon you have options in the ruck