Japanese airsoft retailer Gunsmith Baton is taking pre-orders of the Tokyo Marui SCAR-L CQC version with the shoot and recoil engine. The price is JPY43,480 (around US$535.00) which may vary upon release. They are expecting a summer 2011 release so those who have pre-ordered will get theirs in a month or two.

If you're from  outside of Japan, and you can't wait for it, you can try contacting Gunsmith Baton as they mainly cater to the local market. It won't hurt to enquire though.