If you want to build the Rolling Rock Construct on a flat claim, the all-in-one blueprint will work just fine.

If you want to have the two wheels at different heights, you can set that up with the components here!

The wooden blocks on the placement frame show where to put the blueprint blocks for the construct body and the two wheels. You can adjust the relative heights to fit your landscape, and the hubs of the wheels will still fit with the mounting arms on the construct core.