I'm totally down with this idea. I miss the skywalks in BP probably more than anything.
One tiny amendment to the personal farm thing though. I think we should each be able to have a farm of 8 or so melons. Just in case the hunger kicks in and you need a quick bite. 8 would give about 3/4 of a stack, and that's more than enough to keep going if you're working on a project or until you get back to spawn for the goods.
I think the "single-person managed" farms may be problematic in that sometimes players may be gone for an extended amount of time, so that particular item may not get back to spawn for a while. If all the farms are near spawn, anyone can harvest, put extras in chests and replant. The ANMC CO-OP!