I am looking at getting a new truck and maybe a new trailer. The first plan was to get a 2001-2002 2500HD with a 6x12 dump trailer. I then thought bout maybe just a dump bed but I don't like having to have an insert in it all the time as it will be a personal truck as well. With that being said how are the dump beds that lift the existing bed in a truck. Are they strong enough or do they tend to twist and bend. I figure $2,500 or so for a dump kit and $4,000 for a used 6x12 tandem dump trailer. Do these prices seem about right?