Ken D, I would say that a CAT-0 hitch and rear PTO are going to run you about what KENtucky wrote. If you keep your eyes open you should be able to find the above stuff but it could take quite awhile. We don't like to post prices much because we don't want to set prices. I will say that the CAT-0 hitch and rear PTO for the SGT (Super Garden Tractos, 982, 1872, 2072 and others) don't come up for sale very often so if you WANT one and you FIND one for sale, it's best to buy it then and be happy you found it.
Myron, ah! The 782 had an optional CAT-0 hitch but not the CAT-0 spec. 2000 RPM rear PTO, only the SGTs had that as an option.