First off I was referring to playing a tank as playing a tank for your trusts. Your trusts aren't going to care if you don't have an Ochain or Aegis yet, and frankly, neither do most starting groups in Escha. The hype on the boards is not the whole of the player base. And there are alternatives to Aegis and Ochain as you're improving yourself. Tanks are still at a premium in general, so being one in general still nets you higher chances of getting into groups. Just don't be picky about which groups you're getting into.
As far as Trusts go, the best way to get tanks to avoid gaze mechanics is to be the tank, and not rely on trusts to do the role.
As far as your money issues. Diversify your income. If Dynamis currency is a desire for you, then your best solution is NOT to do the content that drops it. Focus your time on making gil and leave others to farm the currency for you. Skirmish Stones, Devious Die/Liminal Residue (as well as other drops) from Walk of Echoes, HP Baylds, Alexandrites - Everything that isn't your goal should be your targets, and keep yourself diversified - as the wider your variety, the broader your market (and the less it seems like a total grind.) In the end you'll start to figure out what your target customers want the most and make a killing with that.
Also, I'm going to state another piece of unpopular advice: Do not be afraid to undercut slightly. Players who overprice things like to try to cow others into playing their game to give themselves a 'fair' shot at the money, but that's not how free market works. You are competing with the other players for your customers, so if you feel as if it's worth it to sell quicker by selling for less, do it. In the end it's them that are going to be rushing hand over fists to keep up with you. Buy low, sell fairly, and quickly. Currency that doesn't sell just winds up being wasted time.
I can't speak for lesser populated servers, so I'm going to advise that you move to one that's more populated at this point. Money may be tight, but for the two meals out you could improve your gaming experience significantly. Your call.