I also have three of Greg's fantastic Nova kits. I like your approach so far, Anthony.
I, too, identified the Revell '69 Nova chassis as an outstanding donor. ALL the Novas from '62 to the end had the same wheelbase, 2-doors and 4-doors alike. The Revell chassis is somewhat easy-peasy, but several fiddly little adjustments.
One of my Novas will ride that undercarriage. Another of them will utilize the recommended MPC Squad Rod chassis - just to expedite a quick(er) build. Jury's still out on the third build.
First one will be a replica of my 1:1 Nova patrol cruiser from back in the day.
Second one will be in Denver PD livery - the only other sizeable agency in Colorado that ran the Novas to any extent.
Third one? Still formulating ideas.
Will be following this one.
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