On mine you dont even need a key to put the gearbox into neutral.... Just pull the shifter into N.
Steering lock will be your main issue. At the most basic, you can probably remove the lock barrel to disengage the lock.
Well that's good news. I assumed there was some computer security that required the key to be present to operate the gearbox.
The bit you don't recognise is the lock for the glovebox. That will do the job if you can get the ignition barrel out as normally it needs the key in to remove it although brute force would probably do it. If you wanted to be able to use a fob, you'd need the fob, the BeCM and the instrument cluster if you don't want to screw up your mileage on the odo.
The seller of that lockset is Phil, a member on here (username Holland-and-Holland), try dropping him an email and telling him about your problem as he doesn't come on here regularly these days.
Again, my assumption was that the computer needed to see something from the fob to allow the car to start. More good news if all it needs is the correct key to turn the ignition barrel!
It will be more expensive but a lot less hassle to buy a replacement key fob from a Land Rover main agent. When I bought one a year or two ago I paid about £225 & was impressed that I could still buy a brand new key for a twenty year old car. My local main agent didn't even ask for ID or the V5C but supplied a new key fob just on the registration number. It arrived in stock a couple of days after I called up & ordered.
I thought I read a few years ago that spare key supply had dried up through the dealerships. I'll look in to it but I think my BECM has been replaced by a previous owner. A while ago I had a lockout issue and the EKA the dealership provided me didn't work. I sent the BECM off to Marty to be unlocked and he said there was a different EKA code programmed in to it. I'm not sure a key from the dealership would work. Quite a lot of money to find out lol.
Thanks everyone :)