Looks like you've done a ton of work already. You must have had a pretty steep learning curve.
There are lots of websites with info on TRs. Try the International TR Registry
http://www.trregistry.com/start/registry/html/Also, Moss Motors has lots of information as well as really well done videos (also on YouTube).
"6 Pack" is also interesting, Wikipedia is good for real basic Triumph info.
And of course VTR is the best...
Keep snooping, there's lots to find out there.
Congratulations on your new TR.
- Craig