You have:
A bike with a blown motor & an extra motor.
Sorry, man, I can't help you from numbers. If you show us some pics, we can probably tell you what you have. The numbers mostly help when you need to order parts, as Triumph part numbers tend to change at a given VIN or engine number instead of at nice, clean, model years.
(I am more helpful when you have questions I can answer.)
Cheers,
-Kit