not necessarally, all depends on the car max noseweight and on how you load the caravan.
A bit heavy on the bike rack but otherwise sounds about right Bill. Which begs the question, how does anyone legally tow a caravan as it's over the permissible limit?
You have to adjust the distribution of the weight so that you don't just ad more to the front. As an example, on mine, I moved the spare wheel (20kg) from the gas locker to a carrier behind the rear axle to free up some capacity. It all depends also on what weight you have on the drawbar with the van completely unladen. Again, in my case there is very little so I can load stuff without going over the car noseweight limit.