Chen Xin didn't plan to dismantle the equipment in his shelter, so modifying the vehicle meant he had to collect resources anew or make parts by himself.
Fortunately, he had a workbench, and he could process some of the materials needed for the vehicle modification himself. What he truly needed to trade for and collect were mainly raw materials and those that were more complicated to process and more conveniently exchanged.
These included car parts, cold-resistant materials, and various types of steel needed for vehicle modifications, which Chen Xin had to obtain through exchanges with Li Yulong and the SWAT team.
However, materials like shock springs, track parts, and water circulation devices could be fully manufactured by himself, consuming only a minimal amount of survival points and raw materials.