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According to P1's product site, the bonus versions should also be available via official Prime 1 distributors. I've never seen them lock the pre-orders this early (usually it takes months), so I'd take my time and see which shops will carry the bonus version. You could also ask Sugo via mail
That being said, so far I haven't seen anyone order the reg. versions - it would have been smarter to make the bonus version the regular one and then have a DX with two swap-outs or something.