I have yet to see a redial where I would have been personally happy with the work on a standard dial, let alone one of any personal significance.

Do you have any photos showing the extent of the damage?

What I would consider is getting a decent stock dial and having the refinisher simply apply the McLaren text to that, rather than trying to restore an entire damaged dial. It's entirely possible that the text was applied after the original dials had been printed, rather than being intended as McLaren commemorative dials from day 1 anyway, so in this fashion you would be replicating part of the original process rather than asking a restorer to nail the fine details of a dial that was printed, not hand painted. Which they never seem to quite manage anyway...