Replacing the gears in a FP12 fuel transfer pump

2005 Keystone Raptor 3612

I have read many posts regarding the Graco/PBL FP12. I have determined that I need to repair/replace the gears in the pump. The problem that I have run in to is that the pump is so far forward that I cannot get a wrench, socket, pliers, anything on the last bolt.

Can anyone tell me the best way or anyway that I can remove the pump from the chassis to get access to the last bolt.

Thanks,
Curly