Are the bearing retainers used on mid-90's van diemans (outside thread, castellated sleeve) (Used to hold the lower front ball joint and the front lower rear ball joint) available from a common source or are these speciality van dieman parts?

is there a tool available for inserting and tightening them or do you need to make one? The one I made had to be welded to a buggered retainer to get it loose, so I'll be replacing both the retainer and tool.

Same question with regards to the forward motor mounts - common part or Van Dieman specific? Anyone find a source for these?