I get asked 'what do I need to rebuild my AP calipers'
I have listed the parts required with an option with or without pistons.
1. Seal kits/2  inc ss bleed nipples and caps.(comprise of piston seals/dirt shields)
2. 2x link pipes.
3. Brake pad thrust plates(ss) & srews.8 pieses.
4. SS Brake pad retaining plates and pins.
5.SS Banjo bolts&washers.(2)
6.Caliper to hub screws (M12) x 4
7.M10 Caliper bolts x 8 SS
8. 8 pistons (Optional)
1-8 is £334.27 plus VAT 
1-7 is £263.07 plus vat