Gaunty
Sorry for not responding sooner, but have been totally self-indulgent committing aviation, for the last week.
As for "winding back the odometer" - if you are referring to a vehicle, a la my BAPOS Toyota Hi-Lux, I can recommend the likes of the "Dodgy Bros", or in the case of something infinately more complex whose chasis was designed for speed, but regrettably, is now accommodatingly more luxurious than initially intended, may I suggest the "Nip and Tuck" man, under Cosmetic Sugeons, in any good Yellow Pages.