New to RVs

Thanks for all the input guys. I should have come here first. You did "scare the bejeebers out of me":) but that's a good thing. I'm not normally an impulsive person and tend to over-research before making even a minor purchase. I have been in contact with the dealership and this is what they are willing to do for me: I can take a test tow of a very similar trailer and go over some local hills with it to see how it feels. I plan to put some weight in the mini-van for this test. If I am not comfortable they are willing to let me purchase something else. I'm feeling much better. If I do feel comfortable with it then I will complete the purchase and most likely be in the market for a new tow vehicle late next year.

Sigh...deep breaths...