Quote Originally Posted by Ode to a Grasshopper View Post
I'm researching it a bit now...from the looks of things, the easiest way seems to be to base myself in Fukuoka for a few days, taking day-trips to Nagasaki and Kokura. Fukuoka is located between the two, and seems to have the best concentration of hobby-shops in Kyushu.
After that, head to Hiroshima for another few days, do the Peace Memorial, maybe check out Miyajima if time allows, then back to Osaka.
It works out pretty well inasmuch as Kokura was the original target for the Fat Man bomb, and the main point of the trip is to see the atomic-bomb sites.

Apparently there's an issue with the region-specific passes for Kyushu, so the general pass is definitely the way to go.
Nagasaki is a day trip but Kokura can be done in half a day as most of the hobby shops are in one building and that is only less than 5 mins away from the station. Fukuoka does not have too much there, you might be thinking of Kokura. Miyajima is a day trip and while in Hiroshima, also look at the Yamato museum (about 1000yen to enter) and also the navy museum across the road as that is free to enter. The 1/10 scale of Yamato is pretty impressive. Also near the Hiroshima Peace park, there is a Yamada along the main street and a couple of small hobby shops (Yellow Sub and something else).