I recently ordered a cone + hfm for my 612 from Fotoman in China.
Response time was rapid, communication excellent, and they even sent jpegs of the items to be supplied when they sent the invoice. Payment was via paypal, shipment was immediate, and package was received in less than 10 days. Post-purchase questions were answered quickly and clearly. My thanks to Charlie and his assistant Sally at Fotoman in China. I am including their contact info here:

Tel:+86755-88834733
Fax:+86755-29558764
Http:www.fotoman.cc
PayPal:fotoman@yahoo.cn
E-mail:fotomancamera@yahoo.com.cn
地址:深圳市宝安区西乡宝源路F518时尚创意园F17栋客服中心二楼
Add:F17, F518 Idea Land, Baoyuan road Baoan district, Shenzhen , China Zip code:518102