Both work great together.
FYI death screen issue was fixed the very same morning it was discovered.
Also, rather than removing the entire ui you can simply remove the affected item
As for the configuration for eq2maps to work with thorui...
Install both as instructed (default location recommended)
Open eq2map program and click options, then select the thorui for your current custom ui.
That should be all that's needed.
Let me know if you still need help.