I tried doing a full tactics install, minus some of the NPC mods and NEJ2 and everything seemed to install ok except for wide screen mod.
The error that I'm getting is:
ERROR locating resource for 'COPY'
Resource [GMPWDMB0.mos] not found in KEY file:
[./chitin.key]
I noticed that the Big World Install.bat wasn't installing W_GUI (nothing between the tutugui and widescreen calls in the .bat) - I did a manual install of w_gui, and widescreen mod is now installing without a problem and the game seems playable.