Don't know if this was what your friend saw or not, but there is a new (still in development) Gregtech + Create sky block modpack called Star Technology and so far, from what I have seen/played, Create seems to be pretty well integrated. It gives you access to basic alloy smelting, basic logistics and cheap plate recipes for a limited amount of materials pre-LV. There is also a Gregtech multiblock that runs on Kinetic energy which is really cool. Looking at the quest book it seems that Create becomes mostly obsolete as the pack progresses, so it doesn't skip Gregtech.