2 ways to do it.
1. Day 1 and day 11 estrumate. Day 11 scratch cards or kmar and ai as bulling once a day.
2. Day 1 scratch card/kmar and ai as bulling. Day 7 estrumate remainder and ai as bulling
Option 1 takes 4-5 days
Option 2 takes 10-13 days
With each option you remove as ai'd taking pressure off your small area of ground.
This means that all your repeats should come at the same time so return them to this paddock at about 18 days after ai and scratch card and ai.