Here is how I've got my sandwich plate setup. It has two 1/8th auxiliary ports for oil temp and pressure gauges, the latter to be remote mounted on the firewall with an extra port for the pressure warning light.
Can anyone see any issues with this configuration?
This is the bracket I made out of angle alloy and had welded and braced up to support the bonnet latch as I had to alter the original one to squeeze the oil cooler in there.
A shot of it peaking through. Although it blocks the radiator a bit, the air con blocked a whole heap more. I was careful to put as much gap as possible between the two cores to help with heat dissipation.