Air Jacks Double Height Jack Stands

Good day all, 

First, I have hopes that this post is appropriate.  Full disclosure, I do not own a Radical.  

I am representing a company, Demon Speed Motorsports.  We have supplied enough Radicals with our tire warmers that we keep them in stock in the correct sizes now.  But that is not why I am writing.  

Demon Speed primarily makes and sells parts to support Porsche GT3 Cup cars, which, among other things, have air jacks.  

We have had a customer with a Radical reach out about our double height jack stands if they fit the Radical jack stands.  He does not have his car local, so he can not tell us what brand of air jacks it has.  I am writing to see if someone can tell me what they are or at least provide measurements.  I have heard back from Radical that they also sell jack stands, so I am also not sure if the best path is to send them to Radical to buy them.  

We have re-designed our jack stands to work with other cars as the interest has arisen and I have no issue doing the same with the Radicals if you think that there would be an interest (if there even needs to be modifications) 

Thanks

Ed