Weeve @ gentoo hooked me up with an account on a Sun T2K and I’ve started a tinderbox run over there.
The repo is pretty small in size right now (343 pkgs) but will be growing over time. I can see right now I’ve got lots of bugs to file and poking to do as this arch is lacking behind in stable keyword markings for a lot of standard packages in addition to lots of packages failing that are marked stable. But it will be a while before I can really dive head on into this as I’m moving next week.