Aerial 20T's, Original Speaker Stands

I have recently purchased a pair of Aerial 20t's on Audiogon. Unfortunately, the seller does not have the floor spikes and related hardware. The spikes are an integral part of the speaker and without these spikes I will not be able to get the true benefit of the speaker design. He did have the crossbars and castors, I have been told that the crossbars for the castors are the same as used with the spikes. Aerial is in short supply of the hardware and cannot supply. Any input on the following questions would be of great help:

1. Are there any members that may have a set of Aerial spikes and knobs willing to part with them.

2. Is there aftermarket hardware that are designed to work with the 20's, I believe that the thread count is 1/4" 20, however this may not be correct.

3. Are there any close up photos of the spikes and knobs, or any scaled drawings for the hardware. Perhaps I can have them made, however feel that that would be expensive.

4. Any ideas on how to solve the problem

Thanks in advance for any replies