Condensation seems to have cleared and I'm assuming it had been sat around a bit with the dealer with wet bodies getting in and out. I've obviously used each day this week and open windows when I can - thus circulated a bit of air around. The inside needs a clean TBH, but didn't want to introduce more damp so it will wait for a decent day - July 2015 perhaps?

The spare wheel well with the LPG tank was very condensated and I left the cover propped up for a couple of days to ventilate and that seems to have cleared too. Something to keep an eye on however and I might look at cutting a couple of vents/grills into the floor panel.
The engine was replaced at 97K, so is actually sub 100K - obviously the rest isn't, but does seem to have been well maintained...
Defender300Td1 - comments noted and I was actually looking for a DSE.

My hand was kinda forced when the exhaust of the Disco sheared off on the 'Y' shaped cat pipe just below the manifold flange. It changed the game plan from soon to immediate! We both work full time and depend heavily on cars to achieve everything that has to fit into the day including school run - public transport just doesn't work for the journeys needed and I was forking out £15 a day on one taxi run! I'd been watching the P38/DSE market since October (eBay, AutoTrader and a few local sources) but the few that came up locally were loaded with issues, had coil conversions or were over my budget. I had been planning a 500 mile round trip to look at 7 on a Midlands run combined with a family visit, but then this one popped up on my doorstep! I like the economy of the BMW units, but confess I did have some concerns around power and to chip or not to chip etc. Most who I spoke to didn't reckon they averaged more than 22/24mpg anyway? I use regularly for mobile disco and also to tow boat or a 4 wheel trailer used for animal feeds, logs etc. Currently boat is only a 14' and even a Mini would tow, but I'm rebuilding a 21' with a V8 that's considerably heavier and may well look for a 25/28' project after that! The thought of towing around a hilly area like this with an underpowered tug sowed the seeds of doubt. I also know the LR V8's reasonably well as this is my 4th consecutive one since 1998 (5th if you count an earlier Rover SD1 3.5!) so sometimes it's "better the devil you know..."