My plague marines will be out of the box death guards with some conversions but not on hight. So maybe they will fit on a 1" instead of a 1.5". That will save me 1" for the thicker foams for Rhinos and princes. I plan to have wings on princes (but removeable). The pricnces I plan to have is one of the Nurgle
GW princes and the new forgeworld prince.
http://www.forgeworld.co.uk/acatalog/QUATERMASTERS_STORE_NEW_STUFF__11.html
Since I dont have the dimensions for neither princes or the rhinos, I was hoping for some help.