Hello saltiga,
Don't let how literate you are stop you from being on here, that's how you learn. By asking a lot of questions everyone benefits. Don't forget we all started off like you at some time. The more you are on the computer the easier it becomes.
What part of Adelaide do you live in? I was there from 1978 to 1984 at RAAF Edinburgh with my 100/4.
Have to agree with zblu, The Healey Factory is going to be your best source for parts and info. It's worth a trip over there just to look and see.
Regards,
bundyrum.