I forgot to mention the cable guides. The downtube has 3d printed guides that bolt on to more bottle bosses welded on the underside of the downtube. After the bottle boss welding, there was no way I was going to try to weld the cable guides on the chainstays. I was going to use rivet-on guides, but Nova wanted a fortune to ship 3 guides and 6 rivets and eBay from China was going to take a month or more to arrive. I already had the weld-on guides, so I searched for an epoxy that would also withstand the heat of powder coating, in case I ever decide to coat the frame. I tested several super glue adhesives and they all failed with very little stress. The winner tuned out to be JB Weld. I attached them with JB Weld and clamped them for 24hrs. before use and none of them has failed.