Ok, I think I got it all set up nicely now.
As I wrote I don't use FIXT, I'll go with the TeamX patches and sfall instead.
I downloaded 1.2 english and 1.3 english (is 1.3.5 really)
from their russian website and unpacked both in the game folder.
It might also be a good idea to install their
NPC and Dogmeat patches (NPC patch plus fix) but I didn't know about that before starting a new game and now it's too late for it.
And if you can't live without town invasions there's the Fallout Restoration Project on the site I just linked for stuff like that.
I don't care about that though.
High Res Patch is already installed in the GOG version so no need for that.
Then I added the
Fallout 1 child patch to get the annoying brats back.
Last and most important thing for convenience is installing
Timeslip's Engine Tweaks in the 1.18e version.
Seems like this is an early version of Sfall. Sadly the newest Sfall isn't compatible to Fallout 1 so it has to be the one I linked to.
The sfall version here (sfall1.7z) might work too but for me it doesn't, it just complains that it can't find Win95 or some shit like that and quits again.
The one I linked to above includes an sfall.dll file and for that to work you have to hex edit falloutw.exe like pointed out in the readme. I didn't change anything in the ddraw.ini file, the High Res Patch seems to be the thing that decides graphic settings.
After that you have the original Fallout experience with hopefully all bugs squashed and with mouse wheel in inventory function and also with the middle mouse button working as a switch weapons key. Sadly still no take all button/key.
You have to start the game from the falloutw.exe file for the mouse wheel to work though, GOG launcher links to falloutwHR.exe for some reason. I just replaced that file with a copy of falloutw.exe, so now the launcher works too.
edit:
You don't need sfall or Timeslip's Engine Tweaks or whatever it's called though, making this even easier to install.
No Hex editing, just the 2 TeamX patches and whatever you else you want.