I've had two Grayman DUA's; still have one. The grip is sized between the small and large Sebenzas, and fits my hand very nicely. It has a heavy-duty S30V blade-steel, and is a winner. The blade is approx. 3 1/4" long; one of mine was 3.15" instead of 3.25". Keep in mind that these are one-at-a-time near customs, make by one man and his wife as sec'y. Mike and Sue are great folks also, and customer service is outstanding.
He has a batch ready to go three or four times a year, and you can also find one pretty often here on the Exchange, as Cerealkiller mentioned above.
Another great knife is the Three Sisters Forge Beast. Also a one-man shop. He uses M390 blade-steel, which is a steel that is highly prized by the folks who have it. The price is easily in your range.
sonnydaze
Please do read the post by Scurvy092 and by Addylo. No sense in buying a Caddy for a man who prefers a horse.