I looked at many camper trailers just recently. The T-Van is too heavy for a TJ IMHO, I wanted to hire one for jambo, but got knocked back for insurance reasons, as they are around 800kg and ball weight is 100+kg .Hired a Campomatic, still way too heavy, I reckon.
We ended up buying a Pioneer Prospector II 4x4, only weighs 610kg, hydr disc brakes , treg, 240-12v, gavanised,120lt water tank, stainless kitchen,hard floor. Very well built, I think they are great value for money. Made in WA. We love ours.
http://www.pioneercampers.com/home.htm
HTH