forum.audiv8.com Foren English Audi V8 Forum door, boot, ignition locks and shiftlock

I am in the process of salvaging parts from a 1992 ABH engined car.

My car is a 1990 PT model. Unfortunately, the boot(trunk) lock is on a different key to the doors and ignition. Not a big deal, but I'd like to be using just one key. Audi don't seem able to supply a matching lock for the boot(trunk).

options/questions-
1. Can the locks (especially the boot lock) be easily rebuilt/recoded, if sufficient 'slides' are found? I've done this on the type85 quattro I have, after replacing a door lock.

2. Salvage the locks from the '92 car. This car has the shiftlock-III shifter mechanism, with a interlock cable between the ignition lock and shifter mech. Can the ignition lock be removed and retrofitted to my '90 car without using the shiftlock-III?

3. Salvage and retrofit Shiftlock-III and all locks from the '92 car into the '90 car. Is there any reason why i shouldn't do this? Has anyone actually done this?

Thanks all!