Topic: better make sure now than cry later
Make sure if you play around with diplo and crafting to have all this on a same character...
Later at hight lvl, there will be some raid drop / raid quest, twinks and tradeskillers alt can't help on this. So you'll need your main character (if you plan to raid) to be the one tradeskilling and/or diplo.
Not sure i'm clear sorry, but let's say Zigoto lvl2 rogue uber hight lvl diplomat wont be able to give access to the raid force to this uber raid quest requiring 3hours of trash clearing with aoe dmg lvl54 !
It will be the same for Rototo lvl4 DK uber armorer! if he can't loot the no-drop part in raid, he wont help us crafting this uber armor designed just for Zila !!!
Anyway, just do what you want, but think about it, maybe it will be different we can't say yet, but it cost nothing to keep this in mind, Unless you just dont care and do the thing for you and not for the guild! but just make it clear asap in this case so no one is counting on you !