We just tested out the new trunk on our 2003 Coleman Utah. We drove from Texas to Oregon to Utah and then back to Texas. It worked great! There were a few leaks under the locking handles on the lid but we fixed that easy. The whole rebuild took about two weeks and $1000 but it was totally worth it. I couldn't find any pictures of anything like this so I made sure to take lots of pictures to document the process. You can see them on my blog: http://www.popupperegrination.blogspot.com/ Be sure to start with the oldest posts first and then move forward. If you want to see my plans I can email them to you. I can also get you in touch with my metal fab guy here in San Antonio. He was awesome! Don't be afraid to do this yourself - especially if you know how to weld, because then you could make your own box and save tons of money. I didn't think it was that hard and I'm a girl. I know you can do it!!!