I'm delving outside my area of expertise here, but i'm looking to purchase a japanese style, cord wrapped, fixed blade tactical style knife under say, 500 dollars and was wondering if anyone could offer some suggestions. Makers that I've been considering are Don Polzien, Kirby Lambert, RJ Martin, and wayne wantanabe. Of these Don Polzien is the only one I'm familiar with. Does anyone own anything from these other makers and if so can you tell me anything about them? Recommended?