Hi route,
The shops I went to are:
- Mulholland (Its in the Saitama Prefecture, in a place called Daimon)
- B-Crews (Its in Shimizu port near Shizuoka)
B-Crews should have a few used sets of bubble lights upstairs in his little 2nd floor bit. He usually stocks a few pairs. He can get you heaps of stuff, almost anything, if he hasn't got it, he will order it in. He's extremely helpful and friendly to deal with.
Mulholland seemed to have less stuff in stock, but they were more full on about like building custom march race engines and that kind of stuff. B-Crews also had a racecar, but Mulholland seemed more into the whole engine side of things, Mulholland even have their own dyno out the back.
B-Crews is best for accessories and whole-car stuff.
Just walk in there and see all the stuff sitting on his shelves and you will almost cry like I did. What a jackpot! haha.
There's also Kappatsu out in Fukuoka somewhere I think (I never got there, but plan to next time). And ASPECT (Sorry don't know where they are off the top of my head, but look them up on the web), they have some cool k11 parts.
There's also the Tommy Kaira factory in Kyoto I think, I didn't know this when I was in Kyoto, so I'd be keen to find it next time just for a look perhaps.
Hope that helps.!
