Having owned a '97 D90 for 5 yrs, Dave & I can weigh in here... (although ours was not the TDI..ours was regular gas 4.0).
OBSERVATIONS:
~We were very comfortable in the OEM seats for many a long trip across TX, NM, AZ. I did put some nice seat covers on them that were like wetsuit material. I also made some lumbar support pillows, Dave did say he sometimes got a bit of an ache after long drives, but the lumbar thing fixed that.

~We couldn't get that flying brick over 72 on a flat highway....think diesel may be even slower(?) Passing was a risky, calculated operation as it could barely get out of it's own way....

~IIRC, they only made the 110 in white (or at least the ones exported here), so this may be a re-paint job..check out it's condition

~Where's the front exoskeleton roll bars (Camel bar)? For some reason, not sure why, I thought that was required for it to be licensed in U.S. I needed that to climb into it, along with the step rails we added. Looks like this one has the flip down step. I used the top horizontal bar of the exo roll bar over the door to grab and hoist my self in...it was a necessity in my case.

~Creature comforts- ZERO, nada, nil, zip, null, big goose egg.......
~Modern technology or ammenities -ZERO, nada, nil, zip, null, big goose egg.......ummm, it did have a digital odometer display though!

~That weird dash turned out to be exceptionally functional for holding stuff and having it readily at hand. I was co-pilot, so the dash was my territory. It was like having an open glove box right there, very handy.

~Assuming it has the A/C unit....the bolt on a/c was a bit in the way, made for a pretty confined foot area, but the shins didn't hit it much. It certainly wasn't a very strong unit though...keep in mind we lived in TX and it was hot! It could barely keep up. Otherwise, the front flaps were great! Good airflow! And had screens on them so bugs don't fly in and hit yer teef!

~MPG on our gas model.....15 tops with heavy tail wind with OEM gas tank. They do make auxiliary tanks you can add. We could go precisely 225 miles on a tank, maxxxxxxxxxxx. Don't know about the diesel. We had to plan routes carefully to know where gas was available if we weren't carrying our 2 jerry cans on roof rack.

~Tires- It came with the BFG A/Ts but we changed to Bridgestone Dueler REVOs.

~Ride /suspension was great, no complaints, much better than our '95 Wrangler.

~We bought ours at 5 yrs old with only 9k miles, drove it for 5 yrs to about 45k, nothing ever repaired.

~I know you've probably been there already but hit atlanticbritish.com and roversnorth.com to drool over stuff. Definitely need a roof rack. We got the Brown Church. I'd also get a brush guard, but I've been told by many that the brush guard just does more damage to the Rover in a wreck.

~It was awesome for the dogs, absolutely perfect. We removed the 4 jump seats so we had tons of room for gear & dogs. I can't recall how many/if there are jump seats behind your 2nd row...but yank 'em! Sold mine on ebay for $1,200!

BOTTOM LINE- Absolutely go for it...If you like off roading & even more attention than the VX, ride of a lifetime! Life circumstances & changes happen , so we sold it to buy our FJ Cruiser (outright) which was another factor. We were lucky enough to hit the upswing in D90 values and sold it for only $2 or $3k less than we paid 5 yrs earlier. We don't regret a minute of it!

OK, sorry for long book here....hope you enjoy it...