Varies too much to quote. Road or brunters for starters?
Coilpacks dont cost any extra to implement at all. Closed loop is also a standard feature on P8 so is another cost free feature of P8.

ALS mapping costs extra depending on how much work is required and how extreme you require it to be.

Biggest problem with P8 is its bloody unreliable. Had more P8 failures than all the L series ECU's put together. In fact, probably 10x more.