Contact The TR Register in Didcot England office at office@tr-register.co.uk
Bill Piggot the Archivist has access to the orig factory build records and offers a search service at a reasonable price.
Your TS number is too long it could be TS 53558 0 L - Which would mean it had Overdrive from new and is LHD.
The engine number is in keeping with a comm no of 53558.
Cheers
Peter W