Found this in a workshop manual for the Freelander 1.
Unleaded (with full fuel tank -excluding options):
Up to 2001 model year:
Petrol models............ 1380 to 1425 kg
Diesel models........... 1480 to 1525 kg
2001 model year-on:
Petrol models............ 1410 to 1620 kg
Diesel models........... 1540 to 1635 kg
Maximum trailer weight........... 2000 kg
Maximum roof rack load........... 75 kg
In the end I ordered one from Island 4x4 @ £347 free next day delivery. Yes the VCU was in a Britpart box, but it does have GKN stamped on it as well as some other numbers, also the damper is a GKN part. I was hoping to have had it fitted by now, but have been waiting for my mate to have some spare to time to give us a hand at his garage.
I'm in the same boat with Bell engineering snowed under with work until after the New Year so I've been looking at a new one from either:
Island 4x4 @ £289.99 +VAT for a genuine GKN one.
Ashcroft Transmissions @ £370 +VAT
Rimmer Bros @ £445 inc. VAT OEM
Hope this helps.