All three of these mods are JSGME-ready. If you enable one and get bad results - doesn't work properly, does a CTD, just doesn't look good, whatever - just disable with JSGME and you will be right back to what you have now. Use of JSGME guarantees that you can always recover your starting configuration. The only exception is if you are using SH3 Commander and fail to roll back. THEN you can create an unrecoverable situation.
(Well, not really unrecoverable. Worst case might require a complete uninstall and reinstall. An evening's chore, but not the end of the world, either.)
So go ahead! Try any/all of the wide-screen mods. You won't do any permanent damage.
BTW, there's also
WideScreen_complete_GWX&StockSH3. Get it here:
http://www.generalfiles.pw/download/...ockSH3.7z.html