Well it's been nearly a week and things have improved, he's no where near as jumpy, you can walk past the tank and he calmly swims to the other side. Before he would try and jump and get himself really worked up. Nothing on the feeding situation, the second the lid lifts, he's away and sits in the opposite corner of the tank on the gravel and stays there for a good ten minutes until he starts to swim on again. We've still yet to see him eat anything and the food has sunk to the bottom. However it does disappear so he must be eating at some point. Just feeding muscles , one of his favorites from the smaller tank plus they are big and don't break down so they are easy to see if they don't get eaten, but like I said they do disappear.IMHO, the best way for your aro to acknowledge you is to ignore it(still keeping up with maintenace, feedings ofcourse). Realizing the more I get into my other hobbies, the quicker it seems the aro will acknowledge you and feel more comfortable.
He seems to have paired up with the pleco, they seem to swim around the tank together from time to time. I'd expect the aro to chase the pleco but the pleco follows it around.
As long as the parameters stay fine we are going to give it another week before the first water change just to let the filter get up to speed, everything so far reads fine.