The CDI system is £504, Coils you can either have 2 twin coils £65 each or 4
£50 each plus vat,
Costs for SMC £995, or SM2 £1295, Ignition amp £94, Trigger disc £50,
Fitting £500, Mapping £350 all plus vat,
A remap is normally £250+vat,

These prices were all quoted for my car, so the fitting and remap may be different for you.