That is correct, the CI gauges will slide in prefect and the 2 bezels blend right into each other.
The tank is a 1970 mustang 16 gal unit, I had to modify it for EFI and also modified the inlet on top using part of the original filler neck and welding them together so it had a gas cap and moved it up to just under the bed.
Frame work also had to be made for the tank. Pretty easy.