The SCv4 rack scheduler has been updated to account for additional SCv4 racks. These new racks will be available for rental after the SCv4 CCIE Bootcamp in Chicago but you can of course schedule them now in your members site account.
<img alt="SCv4 Schedule" border="0" height="294" src="https://assets.ine.com/blog/images/e56c4a22-adde-4a16-875d-5f6d7300e55b.png" style="display:block; margin-left:auto; margin-right:auto;" title="SCv4_Schedule.png" width="600"/>
Lastly as I stated previously the pricing is still the old pricing of 10 tokens for 2.5 hours.

Additional Security v4 CCIE Racks Available