I did manage to find a Operator Manual for the model 35 Tiller (since I do not have the 48), it also includes model 400 tractor info,
(rear PTO install, tiller hookup and use).
I have made that into a PDF along with the model 35 parts list. if anyone needs one, go ahead and email me and I will provide a DropBox link,
they are both over 30-some megabytes so usually too large to email.