I had a RG made in Japan. It just was not for me. You should try it thoroughly first, the neck is superflat and thin and it has huge jumbo frets. That was just not for my hand.
One pickup is also not a good idea, in fact I love the 3-pickup setup (H-S-H). It's just so much more options and the middle single coil is surprisingly fun IMO.
Haha, i already have an Ibanez RG though that is made in Japan (i think this 1 pickup one is a korean one) it's got HSH and i love the feel of it, that's why i was thinking of buying this because i love the feel of an RG and i can get a lot of great sounds from it.
If i did get this 1 pickup RG i would probably fit a coil tap to the pickup so i could get some better cleans and more sounds. But tbh i think you're missing the point, you don't buy a 1 pickup guitar if you want loads of sounds, there's a reason why it's 1 pickup, so you can do some straight out rockin :P