Glad to know I'm not the only one that happens to BC.
There are several 'un-natural' aspects to the vehicle, I guess mainly because it was a prototype, and also because it has been molested by previous owners who added/moved bits in odd places. They've had around 40 years to mess with it.
The chassis is an M43, with GM gasoline engine and transmission. The transfer case is MIA, along with the front driveshaft. The front frame extension actually used to have a winch mounted there, up close you can see where it was removed, so with that in mind it makes more sense sticking out like that. I will replace the winch in time.
I agree that there are quite a few V100 features to it. I figure if the timeframe I was told is correct (c.1966), the V100/M706 is what won the toss for production. This thing is smaller and much lighter duty than a V100. It is definitely much tighter inside too, which is apparently why the PD that had it for their SWAT team rejected it.
If I can't find proper references for the vehicle as it once was, I will base some of my fixup details on the V100 and the rather basic drawings I found for the Chrysler Light Armored Car in an old book . That may actually be what this is, both show to have the same wheelbase/track and general dimensions, and do look quite similar.
Anyway, I have 40 years worth of other folks embuggerations to undo on this thing! It will take me a while to sort it all out.
Cheers...R