If you want more mountains maybe consider stacking sandbags or a crate down, then stack your rocks up to that. Also to gain elevation fast, I’ve found flat 50mm thick rocks that are used for paving or chimneys and walls are awesome! Because you can stack them on their sides making some super steep hills, or v cracks, or some crazy flex spots! Give it a go.

Gotta have a truck just for mud! I'm building a purpose built C10 just for that! High-speed, big tires, with huge stiff shocks. Zero crawling preformance just made to rooster tail mud!

Good going so far mate 👍

I know this video is old but airsoft BBs work great as a mud pit for these trucks

Hi there, I'm working on something similar and I would recommend some 3d aquarium backgrounds made from molded plastic... Look great as well 👍