Anyone Got Toyota Hi-ace?? Help Needed Please!!

[HEJC72]

Hi Everyone
I am new to the board and could really use some help!

I own a Toyota Hi-Ace Super Custom - it is an 8 seater, triple moon roof, diesel automatic. It is an import on a 1993 K plate.
I don't have any of the hand books for this vehicle and was wondering how I go about finding the vehicles kerb weight as well as the maximum towing limit and nose weight as specified by the manufacturer?
We are looking to buy a caravan and hope to use the Toyota as a tow vehicle but need to know how much weight we can safely pull.

I have tried looking on the Net and have contacted my local Toyota dealer but I can't find anyone who can help as they don't seem to have any info on a vehicle this old!!

Can anyone on here help me please??
Thanks,
Helen xx