1996 Twin Axle Coachman VIP 500/5 question

Hippymonk

Hi all, As a complete novice to caravan ownership i bought a 1996 Twin axle Coachman VIP 500/5 off Ebay at a reasonable price, However i can not for the life of me find any specs on this unit anywhere (only the single axle unit). I was wondering if
anybody knew the unladen and laden weights on this van as i would like to know before i have to go and pick it up. My towing vehicle is a Mitsubishi Challenger (also known as the Shogun sport) with towing capability of 2.8 ton and i am a HGV Class 1 driver
so i haven't got a problem towing but i really do like to know what weights i am up against if that makes sense. I have asked the seller but he hasn't got back to me

Thanks in advance