Looking at that map, it shows that hoping Yummi could suggest some shops, might be like asking someone in Atlanta, if he knows any good hobby shops in Maine.
(note: I'm aiming this at myself).
Hello, edge10-san,
Aha, I've just been Akihabara, Yesterday. Just an hour from my place.
I needed to buy some junk kit parts for my build.
Oh, I could get a bagful of them.
Well, if you have a chance to come over Akihabara,Tokyo,
I recommend you to visit Radio Kaikan bulbing right beside the JR Akihabara train station.
東京都千代田区外神田一丁目にある商業ビル「秋葉原ラジオ会館」の公式サイトです。
akihabara-radiokaikan.co.jp
It is the 10 story large builging and whole the building is hobby shops.
Kits, props, figures, parts, tools paints...etc etc.
I have shopped around another 6 or 7 hobby shops in 2 and a half hours.
Some of them were very specific shops of military kits including vintages.
Hey, I saw 1/72 Monogram B-52. The last time I saw was 50 years ago.
Also, Tam Tam, Yellow Submarine, Suruga-ya.....
OK, once you get off the train, it's Las Vegas.