I hate to be the bearer of bad news... But these packages MUST be built from a clean VL5.9 Standard install, or a VL5.9 Standard chroot within a alternate VL version. If packages are built against deps that we don't already have in the repo, all of the deps must be supplied. These deps can not be packages from another distro.
I'm sorry, but these are the rules.
Okay... I'm done being the bad guy. Just rebuild while bumping it up a build number, supply additional deps and we're back in business.
Love ya man
Edited to add: A user needs to be able to install via Gslapt with one click. Using additional flags with slapt-get to get a package installed is above many users ability. We need to avoid this method.