ModelcarJR,
The '37 sparkplug can easily be done with minimal work. Attached is a photo of a '37 Ford pickup engine. Maybe give it a try in the future.
That tri-power in the '32 is a "nailhead" Buick. I'm not aware of any other kit which has this exact engine although there are others which have "nailhead" engines.
I've started a '60 Ford F100 chassis swap using the Revell "old tool" '56 F100 chassis. '56 and '60 are same wheelbase and ladder design. I'm not home so no photos, sorry. Try a quick mockup to see what I'm talking about.
I just noticed you finally identified your chassis. I was aware of the source but unable to reply (months ago) for some reason. It's in more than one Switchers kit.