Unless I'm mistaken it's already intended for later...
And unless I'm mistaken high quality slash 2's start off as better than slash 10s...
As far as making it take a couple of days-- while holding down a job & a bit of a family/social life it takes about a week to mine the materials & make them into stock, and at least a whole day off to refine to top quality... I think that's plently long enough, especially if someone needs higher skill ranks to make the better weapons suggested...
My request/suggestion pertains to the last phase, when combining items to make a shortsword--taken off the table too soon, you wind up with a short sword kit, and have no use for it or anything... I would request that either these "kits" can be finished into swords, or some realistic justifiable explination at least to why stable hardned items would become unusable by taking them off an assembly table too soon..
I know at least one player/tester who cried when this happened to them after such efforts, and almost stopped playing...
I would compare it to how people might feel if it took days to purify a glyph, and you really couldn't do other stuff while purifying, but had to be constantly active, checking on it--or it would stop purifying or turn to dust... only to be able to destroy it when you try to save it to spellbook in the wrong combining slot... it's just harsh..