Beams

Hi guys. I'm looking at buying an RS200 import, just wondering what has to be done to ditch the Japanese head unit and nav systems in place of a normal head unit without leaving it looking like a dogs breakfast. Are there aftermarket panels and wiring harnesses available? There is also an array of buttons marked in Japanese near the shifter which I would like to delete. Also, they only run on 98ron or higher, yeah? Thanks in advance!