Rick;
Hey! That engine looks like it could start up and tumble off your table! And that frame stuff... it's the Bomb! I mean, it looks really really good, and even if nobody looks, well, as they say, you'll know it's there (and it is SWEET!).
I'm watching with great interest, as I have a couple of A-C kits from HobbyBoss and Bronco, including the older / smaller relative of your machine (the Humber scout car). And I may just have to get me one of these turreted Humbers, seeing as how nicely detailed yours looks!
As an old modeler, I can well remember those long gone years where "well-detailed" did indeed mean a frame with a cross-member which you had to add in! Whatever happened? LoL! These new things are a far cry... Looking at your engine and frame sure does ring strong, as I am just now wrapping my involvement with a similarly well-fleshed kit - the HobbyBoss SdKfz 223 Funk - which I am building for the "Command Campaign" ... and yeah, mine will be mostly hidden too. But I think, from what I've read, that you have the better deal with the Humber IV interior - as I've heard that one is pretty correct for the vehicle, whereas the HB 223 Funk interior, while super nice, is NOT
How strangely similar all those engine and frame bits look!
Keep it going!
Bob