Pindac, I got no PM from you, today or previously. I did find a DP80 for sale on eBay for $800 plus shipping from Japan. Still quite a bargain, IMO, if it’s in good working order as claimed by the seller. For $400 and even less, you can buy one or two off Yahoo Japan, described as "junk".
I've had my disagreements with Jasonbourne, too, but in fairness, he did not criticize the TechDas. He put it up as a high performng TT that the OP might still find fault with.