For the UK…
http://www.indoor.flyer.co.uk/millingmachine.htm
http://myworld.ebay.co.uk/marchantdice?_trksid=p2047675.l2559
Or email Jarkman cos he’s built one;
https://plus.google.com/photos/104753983975472200241/albums/5191405803234312145?banner=pwa