Hi Shawn,
I cut my 360mm disc's out of 8mm plate using an oxy torch and they came out nice and flat. The neo's I got came from china and were custom made, I imported 150 of them between 3 of us and I got 50 for myself. That is enough to make 2 wind gennies with 2 magnets spare incase of any mishaps. I already have an order for a wind genny using the second set and it will be a few months before I get any more magnets from China. Depending on how many orders I get for wind gennies the order could be sooner. If your contact is getting them made in China and trying to rip you off be carefull, if you let me know what size and how many you need I can get you a quote so just pm me and we can do this in private.
Regards Bryan