Looking for a Stride OS set

[jos]

I currently have 3 Stride 420 boards in various state of repair, one presumably fully functional,  and would need an OS set for these.

Anyone have actual floppies or IMD images of either ucsd.p or Liason OS for these machines, or even just CP/M 68K ?

There are disk iimages under the header "Stride"  on the web and Bitsavers,  but these are actually for the previous generation machines ( Sage II and IV)

Jos