Congratulations on your first Land Rover. My wife and I purchased our first just a couple of weeks ago (2000 Discovery II), but are waiting for the title to register it!!!!
I'm a former auto mechanic so the first thing I did was look for a service manual and found a few on eBay. I do recall people advertising owners manuals there. I will look at my electronic manual for the owners manual and if it's there I'll get it to you somehow.
The vehicle is full time 4 wheel drive, hence the great gas milage

!
There were a few keys for sale on ebay for $75, sopposedly there $250 from the dealer.
Where are you located geographically?