I only want to level 1 Crafting class to begin with, my goal is to make gil on the AH.

1) Which single crafting job would you recommend?

2) Do you know of any up to date guides to level it as fast and efficiently as possible?

3) Can you even manage with just 1 crafting class or am I stuck having to level them all to even reach 60 with 1?

I have a level 50 miner but I think for the most part I will buy mats off the AH depending on how much they cost, I have 1.6 million currently

Thanks in advance