All good advice above....
Telegram Sam wrote:As I understand it the chassis VIN number is linked to the vehicle reg no. That would mean that I can't keep the original H-reg and still play by the rules?
That's right therefore from another point of view you don't transfer an existing shell, you transfer things to a newer car from your donor car, in your case the H reg.
Your emissions should be based on the engine type and year of manufacture, from engine number, as detailed in V5C.
Although I've only changed like for like engines the process was the same. change engine & speedo ( I'd rather know how many miles the engine's done, better for belt changes etc. , than knowing how far the bodywork's travelled ! ) then notify DVLA of new engine number to change it on the logbook. With this the mot tester will know the appropriate test to do.
Email is open to what I call "digital denial"- we never got it. I use good old recorded delivery for peace of mind.
The last time I did this I notified the insurance company who requested a report from a garage to say the engine was as described and had been fitted correctly. Luckily my nearest one ( who I had never used ) supplied one free.
This was never a problem with insurance companies after that initial request
Are you changing the N reg bodywork to pre-facelift i.e. old style bonnet & bumpers/strips etc. ? If you're changing everything over ( I like that idea ) then I think you'll be presenting an N reg. pre-facelift sri replica to your mot tester and the insurance company.
That seems like a nice compromise to me. The car with engine you want, bar registration number but with a newer body.
Take off your old plates and use them for show days and polishing days pictures