Aftermarket gauges into stock bezel? (64 Valiant)

I'm going with custom gauges on my '64 convertible, but it won't be cheap. I'm ordering a set of 67 Series NVU gauges that will be mounted behind the stock bezel. Turn signal indicator and warning light bulbs will be replaced by LEDs. I've finished reworking the stock gauge mounting system and installed the LEDs, and modifying the bezel is in progress. It will go in for rechroming when I order the gauges.

If not for estimated income tax and property tax time, I'd have the cluster ready to install now.