I was not familiar with the Sparky Autogyro, so I did a quick Google search and stumbled across this. It appears the plans were once available on http://www.autogyro.com. This message was posted on their website:

"PLEASE NOTE.... These plans will no longer be sold from this website... AUTOGYRO.COM
Disregard any price and/or mailing information posted below. All remaining copies have already been sold and the listed plans will be offered in the near future from AeroBalsa.com.
AeroBalsa will add these plans to their excellent line of ROTOR BLADES."

I didn't see anything on AeoBalsa's website, but you might shoot them an email and inquire about the status.