I'll dry run these selections based on MG's rules except if top rated horse doesn't meet criteria move down list to find next horse that does:
Canterbury R2/1; R5/9; R6/8; R7/9;
Doomben R4/10; R6/3; R7/13; R8/9
Launceston R1/9; R2/3; R5/2; R6/5;R7/1; R8/3; R9/3
Sale R3/4; R6/3; R7;4; R8/8
Strathalbyn R6/1; R7/5; R8/1
Narrogin R1/11; R2/3; R3/1; R4/4; R5/7; R6/5; R7/3; R8/2
Min field size 9
Interesting to see how it fares?
RP