Re: RG Ninja 2008 Spring Special Limited Edition
I looked up the Sakura one, I only saw listings for it from European stores. Definitely going to be outside of Japan, but not sure about the US.
Didn't check the Ninja, but the Sakura one seems to just be a slightly overpriced normal RG Tremolo guitar (could just be because I got the price from a European company), since it is Edge III equipped. Probably be cheaper and easier to modify a better guitar to look like that then to try to make that into a better guitar.