Back then it was common to distribute software in the more common RX01 format (IBM3740) so that people with RX01 and RX02 drives could read them. Are you sure they are in RX02 format?What happened to this? I found three RX02 disks with Modula-2 written on them. But they seems to be hard to recover. There is mold on two of them and the third is squealing a lot and gives plenty of errors. But there is no shedding. I can try cyclomethicone to see if that helps.
But there is no point in doing the effort if someone else already imaged a copy of Module 2 for RT-11. Btw. This is a three disk set. I have no idea about version since it is a handwritten label.