so I've been explaining this concept around with my friends I thought I'd share.
the basic idea is you build all your professions on characters not on which ones you need but which niche you find in your servers market.
examples of single character profession stacking you're sure of by now.
to name a few are tailor/enchanter ,or enchanter / jewelcrafter
a quick run down would be
the transmute
1 miner
11 transmutation alchemist
you bot the mats for living steel, for each transmute everyday and clear cooldowns.
Ghost iron bars>trillium bars>Living steel.
You can sell the living steel or even add a blacksmith to make top tier raiding gear.
These can be your bot accounts or even your main account most of these account builds can still allow Jack of all trades achievement.