I am a new Element owner (2005 model) and I plan on driving her to Colorado this summer. I want to install a hitch so that I can use a cargo carrier (max 500 lbs.). I've seen several types of hitches, and I'm not sure which one would be best. I will do nothing more with the hitch other than using it for the cargo carrier and, possibly, a bike rack in the future. I am thinking a Hidden Hitch, class I or II would be best. I also want to install it myself, so I'm looking for something I won't have to do a lot of work to install. Anyone have a suggestion for me?