You aren't screwed at all. Simply install the parts of Ease-of-Use that are compatible with BGT.
As for Grey Clan, it doesn't touch the Worldmap (at least the old version didn't, what version are you installing?).
Oh, sorry, I hadn't yet installed Grey Clan. I was just wondering if I could do so safely AFTER I installed everything else. It appears that I can.
I plan to use version 1.21.
But now that I have you here... can I install this and continue with my current game? From the readme, it seems that only the Friendly Arms Inn will be changed. Or are there other traps?
Thanks.