Kayak Track Mount Tool Retractor Bracket

I designed these brackets to allow me to track mount a group of tool retractors on my fishing kayak. I designed them to use these retractors:

https://www.dickssportinggoods.com/p/t-reign-24-retractable-gear-tether-with-carbiner/16trsusmrtrctrwthfac?camp=EML:DSG_TRN:07122021_DSG_Order_Shipped:LINK_1&customerkey=793013640

The very same retractors can also be found branded "Boomerang Tool Company." I ordered what's listed on the link, and received boomerang. They are however identical. They're still spendy for a set of 4, but I went this route as an alternative to the YakAttack retractors, which are 30 bucks a piece, and 4 of them would use up an entire track on my kayak.

Once printed, you just unscrew the metal bit holding on the clip, drop the retractor into the bracket, then use the same screw to attach it from the bottom. I used a yakAttack know and t-bolt that I had lying around, but any 1/4-20 t-bolt and 1inch knob will fit. There is a counter bored hole under the knob that