October release, 5,040 Yen (inclusive of tax).
Also, a look at the poster for the special campaign at the upcoming Tamashii Festival 2010 announced last week:
The poster can be redeemed by showing the manual of the just released Super Robot Chogokin Mazinger Z to the staff member at the event.
The manual, as revealed here, has an official seal of Tamashii Nation at the bottom left corner, so photocopying the manual won't work even though it's in black and white. ^^
Tamashii Festival 2010 will be held on August 7th and 8th at Akihabara Akiba UDX.
Images are from Tamashii Web Diary and Super Robot Chogokin Diary.