Hi there Jacob,
This sounds like an interesting project to me. I'm new to this website/service, but don't let that deter you from considering my proposal.
As far as I understand, you're looking for someone to design mounting brackets that can be CNC machined or 3D printed. Is that about right? I'd like to work together with you on this project. I can offer you multiple designs to choose from, an ongoing discourse so as to allow you to have a finished product that works for you the way you want it to.
I'm curious to know what material you would like the finished product to be made of, and if you do elect to use me as your designer, I would need to know the measurements of the lightbar, and the measurements of whatever part of the vehicle it is meant to attach to.
I've been designing and fabricating various objects for some time now, a few of which can be seen in my portfolio.
If you have any questions for me regarding this bid, please feel free to contact me.
I look forward to the possibility of working with you on this project.
Regards,
Sean Reid