@Libelix That will hurt your bank account. New VCMs are really expensive.

You will need to revert all changes done with Vdash and OrBit. The CEM configuration has to be the one that is known to the VIDA/Volvo servers in sweden or the car will be blacklisted.
If the independent has paid for a VIDA license which includes software reloads he should be able to do this. But the price for the software reload will be the same or even higher than by the official dealer as the license fees are very expensive, and almost every software package has to be bought like a "spare part". Ask for an offer first.