If you're going to do a 40k army right, you simply cannot ONLY have vehicles. But if you're doing a custom army, you can't convert every single one. Thats where resin casting and duplicating comes in handy. Below you can see the warboys that will join the ranks of my Citadel Armada...a tribute to George Miller's masterpiece, Mad Max Fury Road.
I can't wait to get my hands on these casts so that I can build my horde of crazy-ass warboys.