What would you choose and why. I already have a 91 cummins but have have a chance to get a 96 p pump with the fuller non overdrive tranny for 1800. Id also have the parts needed of I found an overdrive tans. The adapters for the zfs with clutch and flywheel will probably run me around 1500the or so. I would also have to get a divorced t case for the fuller. Opinions would be great.