That looks like a good find - no rust peeping through in any of the normal areas (unusual for an A reg car - rust proofing was improved on later models).
Well worth having a look before buying any parts - a nasty gearchange is often caused by the spring being missing from the gearlever, and the shaft does need to be lubricated where it passes through the bush above the radiator as Le Champ suggested.
Are you planning to pop down to the R4 run in Kent? Miles and miles from you, but good place to meet up with the crowd.