Turbo Balancing in the West Midlands?
 

I'm rebuilding my VF43 with a bearing kit, new turbine housing and billet compressor wheel. The billet wheel is component balanced apparently, so in theory (as I understand it) the assembly shouldn't need to be balanced, however it's been suggested, and part of me agrees.

I've called a few different companies in the West Midlands (UK) area and getting the same sort of answer from them, basically they do not want to touch a core that someone else has brought to them... :Whatever_

Can anyone advise,

Firstly: does it really need balancing if the 'components' are balanced already?
Secondly: if so, know anywhere in or near the West Midlands that would be willing to do it?

Cheers!