In looking at the frame photos it looks like it (frame) is 20x8mm front and 40x8mm for the rear.
Based on that the top hats would go on the rear/bottom eyelet and the dual set of o-rings.
In the picture you can see something similar to the DVO top hat/caps there on the lower link connection.
Based on that the top hats would go on the rear/bottom eyelet and the dual set of o-rings.
In the picture you can see something similar to the DVO top hat/caps there on the lower link connection.