What to do next? Any advice

[vtaced]

Cash: $410,000
Trades left: 15
League position: 1st

Current Team:
Defenders: Deledio,  Goddard, Scotland, Hurn, Lake, Bugg, Morris, (Mohr, Ellis)
Midfielders: Pendels, Thompson, Watson, Selwood, Shiel, Horsley, (Kennedy, McDonald)
Rucks: Cox, Giles, (Redden, Stephenson)
Forwards: Sidebottom, Franklin, Dangerfield, Martin, Porplyzia, Smith, Saad (Pfeifer, Hall)

I want to get Ablett in at some stage. I can tradehim straight now for Shiel or Kennedy. However there goes all my cash.
I can probably upgrade a forward and defender with that cash. Or should i just conserve trades? I'm not really too worried about the bye weekends. Happy to go in with donuts.

Thoughts/advice?