when i did craft a few nats, i did the general store method, which you take some gp( i think its like 10k for every 1k ess or something, enough to make sure you don't have to go back to bank), noted pure ess, any pouches you might have and fill up with ess. Then go to the altar(whichever way you want), then when you leave the alter, instead of going to a bank, go to the general store located on the Island, sell how ever many ess you have room for, then buy them back and they will be unnoted, (if you have pouches) fill up pouches, then sell however many you need to fill up any blank spots in invent, then buy them back. Then just walk to altar, and walk back to general store untill you are out of ess. Only problem with this is the noobs that sit at store to buy ess, but i have never went across one i heard there is some people that do that. Not sure on time or anything, but it is pretty fast.