Yeah I agree, random ODI tournaments is not the ideal way to start a summer IMHO.
Looking at the Shield fixtures:
Vic v Tas Oct 25-28 (T20I is Oct 31 so shouldn't be a problem)
SA v WA Oct 29 - Nov 1 (these guys should be able to make the 3 ODIs)
Qld v NSW Oct 31 - Nov 3
Then 3 games start on Nov 10. They shouldn't be a problem if the 3rd ODI is on Nov 7.
So yeah, just block the Qld and NSW potential Test players from the games. You still end up with a pretty strong team. My 14 man ODI squad in that case would be:
1 D.Warner
2 T.Paine (wk)
3 R.Ponting (c)
4 C.White (vc)
5 C.Ferguson
6 M.Hussey
7 J.Hopes
8 S.O'Keefe (he's in the frame for the Ashes I guess, but I doubt he'd get much of a bowl for NSW if Hauritz and Smith played)
9 M.Johnson
10 B.Lee
11 C.McKay
Backups:
S.Marsh
J.Hastings
M.Starc
For the T20Is you'd add guys like D.Hussey, Nannes and Christian, maybe Aaron Finch too. Probably for Hussey, Ferguson, Marsh and Johnson - who'd still be playing their Shield game.