New Lowbed tractor being spec'd

I'm getting ready to place an order for a new lowbed tractor. Here are what I have come up with for the specs that I want, please give feedback to see if there's anything you would change. This tractor is being designed primarily to move large yarders in the woods and then all of our swing machines on a 3 axle general 70 ton low bed trailer and a 2 axle booster.

C500 Kenworth, double frame 216wb, 22k steer, 25k dual tire drop, 52-190 double lockers rears in 4.56 on 52k Neway suspension. 445...

New Lowbed tractor being spec'd