Pawel- that is pretty cool, there's actually a full size M728 CEV on the side of the road a few blocks from my barracks, I probably couldn't climb into it, but I could take some photos of the exterior if you'd need them. Though I will say it's been used and most likely updated post-Vietnam because it has tan paint on top of the old green.
Mike! Hey, thanks for dropping in. I appreciate your feedback, I always remember looking to you for any kind of artillery/military knowledge and a real museum quality in the way you present your models in their natural military environment. It's pretty cool to see some of the 11Cs set up their mortar pits and lay the guns in having seen you build bigger artillery pieces in 1 35 scale first.
Quick update, I don't know why I've been putting this rear ramp off so much... the PE wasn't complicated at all, I think I've just been concerned with the fact that the kit stairs are so bad and the only real reason I bought the Voyager PE set was for these replacement stairs so if I screwed them up it would have been real upsetting.
But they came out fine, at least as good as I'd expect or want them too. Maybe some solder in the holes, but I can weather that into dirt and gunk as plenty of the holes got clogged on muddy days.
Here's a close up of the real thing. You'll maybe notice that our real ramp had one detail I'm not too worried about, and that was that under every step, there was a hinged door that allowed the crew in the back to use the voids under the steps (kind of behind the steps once the ramp is closed) as a storage locker (we packed them all full of MREs). This way with the ramp up, you could open the hinged door up, and reach down into the void to pull out whatever it was. Interestingly enough, even with the ramp down, we cram packed so many MREs into that void that we could open the door up without them all spilling out, grab the one we wanted, and close the door. The locking mechanism was a pain, and prone to breaking, two spring loaded pins on either end of the door, that (as you can see) were tight enough that even when they weren't locked in place, would have enough force to scrape the paint, making the doors very annoying, even if they weren't broken...