Link was on page 1 of this thread, but here you go. I used 3M foam tape. One roll did both front and rear plates.
https://www.amazon.co.uk/dp/B01BR2MTS0/ref=pe_385721_37038051_TE_3p_dp_1
I think black border would look very good against white car, just give the plate the right amount of definition.
I m pretty sure i want the border shes going into solartech to get darker rear tints and gloss black vinyl on the roof and top and possibly the line on the grill in black depends what colour the line is inside the lights so thinking the black border will be 👌
The line that runs through the headlights on a GTD is silver. Should look very nice once all the tweaks are done.

Bear in mind, that if you use the oem black front plate mount, that will effectively give a black border between plate and bumper anyway, so a border on the plate itself will give a double black border, but that could look great, and add some dimension to the car, which would work well with the monochrome look.