Car appreciation... the aesthetics, the engineering, etc

Because it behaved so excellently over Christmas I have just dropped the Panzerwagen off at Automerc in North London to be treated to an inspection and service.
It's difficult to gauge how much money to spend on it. I think it's got the potential to fetch top money when I sell it if I can get the important jobs done at a good price, so I've asked them to investigate the likely cost in sorting the air-con out.

And the verdict is... ouch!
Some front suspension work is going to cost me dearly. oh well, what do I earn it for if not to spend it on mechanical marvels?