Totally agree. Answers to all your questions are on the 430 forum.
At the museum we just broke two torsion bars on our 432.
Your track and pads look to have plenty of life left. Always good to drive with someone in the Commanders Hatch and a working intercom, as visibility for drivers is poor other than straight ahead.
Keep an eye on temperature gauge. The intercooler is an Archilles heel.
The Peak turret is the rare bit. Many of these APC's in private hands worldwide now. USA, Canada, Australia, New Zealand, France, Italy, Spain, Germany, Holland, Ireland, and of course, all over UK.
The pack needs to be lifted out for servicing.
Best regards.