42100 Model C – Tracked Carrier – Nico71's Technic Creations
Amazon.com: LIGHTAILING Light Set for (Technic Liebherr R 9800 Excavator) Building Blocks Model - Led Light kit Compatible with Lego 42100(NOT Included The Model) : Toys & Games
Lego 42100 B model by Erictrax instructions are available on rebrickable : r/legotechnic
LEGO MOC Snow Groomer (42100 B-Model) by grohl | Rebrickable - Build with LEGO