Thank god they increased the height limit by that much, I've already made huge plans on my next big build. In a related note, I will be taking large orders of wood/logs as soon as the server comes back up, will be paying respectively per stack.
In the topic of the economy mod, I believe that for a small server like this, something like a market(as in a central place with an unlimited amount of supplies like in huge servers) wouldn't work so well. I do believe, however, that player run shops would be a good addition to the server. It makes trading so much easier, especially when people go offline.