Don't know if this is of any use to you, Note it is a Land Rover Defender 90 as apposed to the Land Rover90. Can't imagine there is a huge difference.
Defender 90 Pick Up
Engine size (Litres): 2.4 Load Length (mm): 830 Gross Payload (Kg): 695
Power (HP): 122 Load Width Max (mm): 800 Gross Vehicle Weight (Kg): 2400
Wheelbase(mm): - Load Height (mm): 1160 Kerb Weight (Kg): 1705
Overall Lenth(mm): 3649 Loading Height(mm): 864 Towing Limit (Kg): 3500
Overall Width(mm): 1790 Rear Door Width(mm): n/a
Overall Height(mm): 1968 Rear Door Height (mm): 830
