Thanks for your kind words.
The company is imcth http://imcth.co.jp/english/ and https://www.facebook.com/desktop.0/
I have also used Hobby Link Japan http://hlj.com/
imcth is usually a bit more expensive, but they include an acrylic stand. You will need this as they are heavy (just under 600gm for the Shinden) and have relatively weak white metal landing gear.
Re PE work, bear in mind that this is stainless steel about 0.2mm and nothing like the flimsy stuff in detail up kits from Eduard and co.
The models may seem expensive, but you will not find better engineered kits anywhere - and you don't have to paint them. When done you will have a beautiful object that will intrigue even those with no interest in model aircraft. IOf you have some complex models under your belt you will be able to do this. I built the Zero after a 20year "holiday" from modelling.
See also:
http://brianszeropart2.tumblr.com/
http://p51mustangbuild.tumblr.com/
http://messerschmittbf109build.tumblr.com/