BiTdi CFCA engine remapping.

[Gemo]

I have an extensively modified BiTdi. I am about to add a hybrid turbo and a CP3 hi pressure fuel pump.
I understand that my current mapping will be far from ideal for the modifications I am undertaking. Can anyone recommend a company that has already undertaken this type of mods and will be able to map my van.
I have already approached Darkside and they are not happy to map my engine with a hybrid turbo from another turbo company.

 

[B.different]

You could try daz at woodhouse and carman in bottlesford. He's a very knowledgeable chap who likes a challenge. He's done 2 of my vehicle's both spot on