Well, what is the era, and shell sonstruction, and with the pitting on the snare, that will take a little of, but since that is not an oft seen set, I'd say 500, maybe 700? All in how much is someone willing to pay.
All of sudden MIJ are starting get out of hand, and it is sad this is happening. Yamaha should, by all right, bring more as they did not engage in the stencil biz, as far as we know, and have almost always built professional quality gear, no matter what it is. Pianos, guitars, flutes, whatever, it is high quality stuff.
I am afraid this current trend is going to continue, because certain people think MIJ all of a sudden deserve a higher place in the food chain, when most people know better. I find it discomforting to see a stencil kit sell for more than a couple hundred bucks, and there are some now advertised for 3 times that.
Anyway, 5-700. My opinon, and I hope it is at least acceptable, as it were. But another may say 1000.....again, that is way into Ludwig territory, and so is 750. But this is a Yamaha, so it DOES deserve the rating of closer to Luds and Rogers....not a stencil kit, no matter how nice, and I certainly wouldn't try to sell my nice MIJ stencils for that.