You probably didn't run the X core
indexers.
mkfontscale /usr/share/fonts/msttcore
mkfontdir /usr/share/fonts/msttcore
That how-to only asked to run mkfontdir for ttf fonts, not mkfontscale so I didn't run
the latter.
assuming you've already added this
cat > /etc/X11/xorg.conf.d/09-msttcore-fontpath.conf
<<'EOT'
Section "Files"
FontPath "/usr/share/fonts/msttcore"
EndSection
EOT
the xset and this 09 file only work if you've already
indexed the fonts.
I hadn't set up that file.
But now you're explaining all this I'll just replace the rpm I have installed with
yours. Then I'll tell if it works.
Best.