Hey I just finished getting Edain to function properly, while also allowing 2.02 to be available as well.
What i did, was I had to install the RotWK twice, i simply copied to program files and put them next to each other renaming the folders Edain and RotWK 2.02 respectively.
I install the 2.01 patches on both,
then for the Edain to work I had to mount the minidisk from smokey man and install Edain,
for the other folder i installed the 2.02 and 2.02v2 patches on the alternate folder, this i imagine would allow the age of the ring mod to be installed aswell,
It is a solution that takes up a lot of space but it does allow easy transition between everything with out the fear of breaking the files.