Despite technical obstacles from a formerly good ISP, the boys at Floodgap have pulled the iron out of the fire and got us an F/F 6 build for the Apple PPC systems. Mine is a model G7450 so the new build is quite perky as it runs without add-ons and other mods. See this link to read up on it. See notes at bottom of that link to reach downloads.
Early reported issues are about the failure of a ‘progress bar’ to display correctly in a few cases and an unresolved ‘black box’ that lingers on screen rather too long.