My wife and I have a 2000 Century with 22 ft box, reefer, generator and lift gate. With all that weight we need to increase payload by adding a tag axle. Where do I start looking and who can do this for me? After adding a tag can I get rid of my dolly legs and use the tag to stabilize when I am running single axle with lighter loads (when unloading)? Thanks for any help and/or suggestions.