Wanted Mounting for Whelen Pioneer Plus 120v Portable Scene Lights

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I am looking for a pair of brackets for mounting/storing a pair of Whelen Pioneer Plus 120 volt portable scene lights. The scene lights look like this:

The kind of bracket I am seeking appears in the picture above: see the black knob and unfinished aluminum base. Please send a PM or reply here if you have what I need. Thank you!

 

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The following image shows the bracket given the name "Spring Pin Mounting Bracket" or "Quick Disconnect Mounting Bracket" and the context calls the style of light the name "3300 Series Pioneer Ground Tripod" but does not appear to list a part number for the bracket:

Source: https://www.whelen.com/wp-content/uploads/2023/04/12243V_Pioneer-Brochure-LR.pdf PDF page 18, marked page 17

 

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The Whelen part number for the "KIT, MTG BASE GROUND PEDESTAL" is 01-0487312-A0:

Source: https://cgi.ebay.com/155225550997

 

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I need these, by hook or by crook. Is there someone who is able to help?