Hey Paul,
As other have mentioned (inquired)-- do you have a pic?
And if it's in excellent condition, as you mention, you might do better to leave it as is. Tho, ultimately, its what you think will make it look best,
To You. I seem to recall a thread here on the forum where some were not that happy with Bignell's work. Studio C, tho, does have a long and positive reputation. If you do get it backed, are you looking to have the work done in the UK? Or is shipping overseas an option?