Here is a link to my post that answered a similar question:
I live in Western Maine about an hour from Rangely area - although the driving distance is long, it is actually in the same vicinity as my location.
The Rangley area is very rural and seasonal - you may find that several of your neighbors are only there in the summer (there are also the winter visitors for snowmobiling, skiing ,etc.) Thus, various estabilshments may also be open only during the appropriate season. Like me, if you live in Rangely, you will have to drive farther to get things. Although there are services for your standard needs (groceries, animal feed, etc.)
We are not homeschoolers (yet) but I know many homeschoolers. It seems that it is fairly common and most people do not have much trouble with the minimal state regulations. I don't know all the requirments (if any) - I suppose you can look up the most current ones a homeschhol legal defense. I know Maine used to have more stringent laws on homeschool but they changed those laws perhaps 5-7 years ago and I have not heard of anyone of my homeschool friends having trouble with the state regarding their choices. I don't know of a hs group in Rangely (but there might be one up that way) but there is one in Peru that meets once/month.
The organic farmming scene is good - I know several organic farmers. The farmers markets are more difficult - there are a few in the area but they are not huge compared to others that I have experienced in New Hampshire and Vermont. They are also seasonal. However, there are some great natural foods stores and local grocers that would love to sell your products. Some of the local farms are using this as a marketing tool to sell product: http://harvesttomarket.com/farmers-market/Western-Maine-Market
Of course, for meat and dairy, you would have to get licensed. I don't know about other feed prices but I am currently buying organic layer feed for about $18/bag. You should also know, that it is difficult to pasture animals in this region until between December-April due to mud, lack of grass, heavy snow/ice.
The one thing that is hard about moving to rural Maine is that you will always be seen as someone "from away" and it will take a bit of time for folks to get used to you. But in time they do warm up to you and you can be an integral part of the community. What I love the most - beautiful green summers, all my neighbors know me and my kids, breathtaking views, a true small-town atmosphere, safety, and outdoor lifestyle. What I dislike the most - driving a lot, snow removal, ice and the taxes.
Feel free to PM me with more specific questions or ask them here and I will try to respond :)