hi Charles.
seeing as your so good at scratch building things that arent available as kits.
how about a Expeditionary Fighter Vehical (or EFV) if you dont know anything about it or what i looks like check this out:
Expeditionary Fighting Vehicle - Wikipedia, the free encyclopedia 
(not many good pics out seeing as its not in production yet)
or how about the the Protector USV:
“PROTECTOR”, vehĂ*culo no tripulado. - Planeta Gadget
(which is in service with the Israeli navy and erm...greek as well i think.
take care,
Richard