Hello,
I'm happy to announce that I finally have found time to finish this project. Actually, it's not mine, 99.9% of the code is done by PeP aka Peter Persson, there has been only two small issues (fixed boot drive and incorrect command line passing) to be fixed.
I think this belongs to 'tools' (at least for now), so the patch just enables building of additional directory ('mintload') and the archive contains that directory.
In case you have forgotten, this tool runs from AUTO and chooses either default kernel (MINT.PRG) or loads a proper one based on the cookie (MINT000.PRG, MINTARA.PRG etc) from <boot drive>/mint directory. I find this extremely useful, especially with the "recent" patches for kernel module loading based on CPU and the fact that XaAES does this for a long time already. So now you can have one distro to rule them all, no hassle in XBoot and whatnot.