I'm looking for a 30' or less class a diesel pusher. Musts - diesel generator, air brakes and suspension, strong or large motor capable of pulling 30' enclosed race car trailer, allison tranny, 22.5 tires. Wants - single slide, jake brake, would like the rear axle to be as close to rear of coach as possible. I would like the smaller coach for ease of track side manuvering. Can anyone tell me if this exists. Any other suggestions would be appreciated.