will a 70 and later dash fit in a 68, custom Gauge setup

Guys I am wanting to install custom gauges in my 68 dart resto. All the pre made dash inserts are for 70 and up. If I am losing all the original stuff will a custom panel physically fit inside the hole on a 68?
I know it’s a bit different with our Australian built Dodge Darts but thought I’d share what I managed to do with my 69 by designing a panel, laser cutting it, vinyl wrapping it with a brushed aluminum finish and fitting it up with Speedhut gauges.

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