>it uses JIS screws rather than Philips (in addition to triwing)
I don't think this is an issue for anyone who has had to disassemble a japanese device before, and the bits are widely available online. Countless youtube videos have discussed that JIS vs Philips in the consumer space are largely compatible outside of american aircraft construction.
I've disassembled a few Japanese cameras with JIS screws, and they're definitely not largely compatible. You will strip the screw.