I just finished this model. I took about a month and a half to get it done. It has resin wheels, scratch built high lift jack, scratch built suspension and shocks, resin dana 60 axles with resin knuckles.
The base was built out of some green floral foam that I carved and sanded into the shape needed. I used some model train turf and ballast to cover the foam.
The mud was a combo of chalk, water, and flour mixed up. I used my dremel tool to apply the mud on the body and frame. I am happy with the results.
Thanks for looking.
Jake