I bought this knife a little while ago from DrNaka. It's a great knife, but I need to sell it if I'm ever going to buy myself a 270. Here are the specs:
Edge length: ~245mm
Height at heel: ~53mm
Spine at heel: 2.8 or so mm, almost 3mm
Spine at midpoint: just a hair under 2mm
Spine 1in from tip: just a hair over 1mm
Spine 1cm from tip: .7mm, a little under 1mm basically
Measurements of the grind: 1.5mm at the midpoint between edge and spine and just a hair under 1mm at 1cm from the edge. I think this one might be especially thin, but maybe all the ones from DrNaka are this thin.
Weight: I can't give you an exact number, but it feels a good bit heavier than 170g (a 270mm laser gyuto would be around this number)
The knife is in good shape, but it's definitely been used. There are some slight dings (1mm or less) on some parts of the spine. Not a big deal at all, but I thought I'd say all I can think of. The saya is also in good shape, but has some water stains on it. The edge is in pretty good shape, but you'll want to touch it up.
The blade has a yellow-ish patina from cutting fresh turmeric (which is a HIGHLY staining root) as well as some other patina from general cutting. There are scratches on the surface, which no longer has the stock finish, because I had to refinish it with a rust eraser after I failed to evenly polish it with fingerstones. The grit of the rust eraser I used to finish it looked similar to stock, but the scratch pattern is not as well done and crisp as when Izuka san does it (duh). I can leave the patina on or remove it with the rust eraser, your choice.
If there's anything I left out, just ask me by PM. I have a good rep selling on a good number of razor sites, and I've sold a ton over on SRP and B&B.
I paid around 550USD for this knife and if it's the same price now (in Yen), it'd be 580USD with the saya. Mine is used but not very heavily and still has just as long a life left in it, so I'm asking 475USD shipped with insurance and tracking.