I certainly agree with the advisability of a diesel when the load gets bigger. There are many varieties of the Allison transmission, and some of the heavier duty versions also have an interaction with the engine exhaust brake, so that it increases the retarding effect. We also get 12 to 14 mpg when towing, and up to 22 mpg when not towing with the diesel truck.
One of the ways to increase visability is to put one to three TV cameras for rear visability. We used one on the upper back of the truck and one on the back of the cabin house of the C Dory 25 or Tom Cat. The complete TV moniter, and 3 Cameras came to somewhere in the $600 range on E-bay. This included a 7" color moniter and the extra cable to plug in the trailer camera. You can also get side cameras--for example for the right side, down low on the front fender.
One of the ways to increase visability is to put one to three TV cameras for rear visability. We used one on the upper back of the truck and one on the back of the cabin house of the C Dory 25 or Tom Cat. The complete TV moniter, and 3 Cameras came to somewhere in the $600 range on E-bay. This included a 7" color moniter and the extra cable to plug in the trailer camera. You can also get side cameras--for example for the right side, down low on the front fender.