Thank you for the clarification,
gapan!
You can always create your own package by using the SLKBUILD file in /usr/src/R-$version/
I found some generic instructions on the wiki, but am not sure that I understand these and the use of slkbuild with fakeroot (as mentioned there) sounds also enigmatic to me

I couldn't locate any hints on using SLKBUILD on the forum either, so a step-by-step instruction (how-to) would be much welcome.