how much weight can we have?

Another thing you can do is try to find the camper's base wt, then add each "extra feature" that's on the TC, such as the genny, AC unit. Arctic Fox's website has the wts of each thing posted in their catalog, so add those wts together to get a dry estimate, then add the wt you think your "stuff" will weigh. That's how we started.

As it turns out, the tires are a lot of the limiting factor. Look as those too.

Is your head spinning yet? This is the hard part, after you find the right one, it will be easier. Happy hunting!