Roger wilco, Benzmac. Thanks for the note!
Off to do some lookups on PartsShop. As I recall prior posts on the subject, the trans linkage bushings themselves are stupidly cheap items, they're just hard to put on.
I might end up pricing my time on this and having it done by a pro wrench. Just putting the 500E up on full jacks and stands in the garage is a fair bit of work, since nothing else underneath needs fixing.
I'll post a report on this one once it's squared away.