This is perfect
Exactly what I was looking for!
The photos are very, very good. Google Translate is not perfect but it adds more explanation. So it is possible. Excellent!
Interesting to note the original ST-238R drive was replaced with a smaller ST-138 unit. That cleared room for the second ST-138R unit. I assume the original ST-238R can be replaced with any RLL drive - not just ST-[x]38R.
I recently purchased the latest version of HDDRIVER from Uwe Semit. It is very well made. I like it. Glad to know that software can see the second drive.
I also wonder where the author found the second set of brackets. Maybe he made them?