I saw u/secretagentsnail's LEGO DRG concept, so I wanted to chime in with a comparison to the LEGO Power Miners sets. I think taking inspiration from these sets could help improve the
LEGO Power Miners - Magma Mech - Walmart.com
2009 LEGO Power Miners box art [News] - The Brothers Brick | The Brothers Brick
First pictures of 2009 LEGO Power Miners sets [News] - The Brothers Brick | The Brothers Brick
Twin Turbotwister | Ever since Jerac did his Power Driller, … | Flickr
LEGO Power Miners 8960 Thunder Driller, LEGO - Shop Online for Toys in Australia
LEGO Power Miners | Brickset
LEGO Power Miners Titanium Command Rig (8964) - Walmart.com