Hi Leon
I was hoping to contact you but couldn't find an obvious link! Thanks for replying.
I am aware that Paul Banham (now Myrtle Productions but previously of Autostyle) undertook these conversions some time ago, but not currently. It is the technical details of the change I am seeking, although it seems the instruments are from the identical V12 configuration (XJ12 and XJ-S V12). Most warning light circuits of the XJ12 match those of the XJ-S, except the ABS, windscreen washers and low fuel lamps. The direction indicators need additional lamps (XJ12 are in the speedo and rev counter) so the XJ-S speedo and rev counter can be retained in the new housing.
Perhaps some others may know more?
Alan