I had custom Mats made by Quality Car Mats. I just made some paper templates and mailed them to Quality. I also bought a pair of 5 3/4" diameter AC Cobra patches from Cobranda, which I mailed with the templates. Quality is installing them on my mats. The custom mats ran $89, delivered. The mats will be delivered tomorrow.
I posted a thread about mats several weeks ago, similar to yours. I'll post pics there.
5 3/4" COBRA Patch
https://www.qualitycarmats.com/