Gnickrapon
Just recently I purchased two sets of stones from Tools from Japan:
http://www.toolsfromjapan.com/store/...5d14d11f4c7e08
If you go to the bottom of the page the Sigma Power Ceramic stones are there. I bought the 1000/6000/13000 set for myself and the 1000/6000 set for my son, who also has three JP kitchen knives.
The tripple stone set is a little bit of an indulgence, and the two stone set is probably ample for your purposes (and mine really). There are quite a few options available and I contacted Stu for his recommendations. I recommend that you do the same by email. Let him know exactly what type of knives you will be sharpening and in particular whether they are stainless or non-stainless. He will be able to offer suggestions for hard and soft stones in the varying grits.
I can say that I have been extremely pleased with my set which I use with chisels, plane blades and kitchen knives.
Regards
Paul