Who here can help me get a poser-ready vehicle?

I'm looking for some help creating a cargo vehicle kind of similar to this http://www.oldcrowmodels.co.uk/25mm/provider/provhl.gif

or this :
http://www.oldcrowmodels.co.uk/15mm/15prov/15provhl.gif
or this:

http://www.oldcrowmodels.co.uk/6mm/water/lcacl.gif

And a water craft like this:

http://www.oldcrowmodels.co.uk/6mm/water/lcl.gif

but with a gun turret at the rear and maybe a station for driving in the front. But it would have to be big enought to hold a 1/2 dozen or so poser figures so there would be room for action.

I'm not looking for exact copies of these vehicles, I don't want to steal the design, but they make good concept pictures and are pretty much what I've been looking for.

Thanks for your help!