Ramptruck Help with 175" Wheel base?

[Skirkpat]

I decided to go with the Ramptruck idea for the one ton, Any suggestions on the build would be appreciated greatly....I like C-30's black one, but do not know if I should go with more for more of a wedge shape instead of being level in front of the rear tires? I would prefer it to be level.

My wheelbase is 175" center to center.

I aleady have a 12 foot flatbed that extends about 6 inches past the end of the frame. and plan on dove tailing out anothe 3-4 feet.

Does any one have any problems with the rear of their bed hitting the ground on hills?

Thanks in advance for any help on this.