Fort Southwick has tonnes of his stuff in it... including railway, submarine conning tower and loads of arty and armoured infantry vehicles. Mostly WW2 era iirc
The 'flat-bed' amphibious vehicles are Russian cold war era... thought to be drivable but haven't move in the 12 years that I've driven past them.
Shame he got rid of his two subs mored next to the bridge
Pounds Snr made his cash from scrapping WW2 Royal Navy ships... deliberately contaminating the beaches of North Harbour, reluctantly buying 'said ground' in order to de-contaminate it, and them making a fortune in property development from the 1960-90's
Pouns Jnr is now a tax exile with a penchance for buying up rare equipment and the letting it rot in the open air of Fort Southwick. ( He owns the fort too and sublets it to NHS and other people)
Pounds had a frigate that he was scrapping laid up near the motorway. The Andrew got a lot of calls from old salts complaining about how slack the Navy was nowadays judging by the state of that ship ... the wind don't blow the way it used to etc .. eventually Pounds was persuaded to write SCRAP on it in huge letters for all to see.
Ft Southwick - I seem to remember it was 600+ steps down to CINCNAVCHAN or whatever it was .. and more to the point 600+ steps back up to the rest of the world. As to the tunnels, all sorts of correspondence in the local paper about them and what might be down there.
I have a soft spot for the forts as my one of my ggfathers commanded the inner line from Ft Grange for a short period in 1895. Word is that Palmerston's family made a lot of money out of bricks.