Gil Buyers!?!?!?

[Elegance]

First off, "no DoM/DoW/gathering classes above level 5" is impossible, you can't take a crafting class until 10.

In all honesty its not hard to level at a profit, as long as you are willing to spend hours sitting and refining mats and reselling them.
Since crafts often require mats refined by other classes, its fairly easy to consistently sell said mats at a profit.
It's also pretty darn easy to consistently hq once you have enough cross class skills.
Heck I can use the macro system for everything save starred crafts, don't even need to react to Goods.

You'll actually be surprised how many gatherers are willing to help out crafters, in one of the crafter LS on my server, its actually not uncommon for some of them to just give their mats away.
I also actually have a second account I was planning to use exclusively for crafting, but since I found I needed to level a Dow to unlock field leves, I just used this.