Quite a lot of prepainted parts for Pest X-san, and part-swapping for the face expression confirmed. ^^
The price is 3,150 Yen (inclusive of tax).
Images of a completed 1/1 Pest X-san on display at Kotobukiya's direct store in Akihabara.
Also shown in one of the images is 1/1 Oboro for Pest X-san - September release, 3,990 Yen (inclusive of tax).
Images are from Hobby Search and Moeyo.