Nice Stig, a 110 would have been a lot more practical but having run a 90 for 10 years I understand the appeal!
You've picked a really nice looking truck there - snorkel, winch and wing top chequer plate is all you need and the only colour too - green! As Fen' says you just need some decent MT's on there (Wolf rims too - alloys on a Defender - pah!). Very jealous and missing my Defender now, living with the Disco is working great at the moment but being without a 'proper' Landy for the first time in 18 odd years or so is tough.
Sell the front facing seats and associated paraphernalia on eBay and leave it bare wheel boxes or install one or two side benches - the front facers are the most impractical pieces of junk known to man.
A small triangular window each side will help a lot with driving one of these.
But and it's a B - I - G but - please, please re-read the post below and act on it double quick:
Land Rover Defender 90
That Ninety you've just bought is about as appealing and nickable as they come.