This is a cool mod idea. But I would recommend putting this AFTER the mining drones. Research should be "Mining Drones > Mining Trucks > Mining Trucks HP / Mining Trucks Shields / Mining Trucks Speed x 4 or so". 4 researches or so for multipliers should be available. Trucks should be faster and have a great inventory than drones but produce pollution. Mining trucks should also be more expensive so as to remove the excessive amount of in-game power they have. Currently, they're somewhat of a cheat.

Let me know what you think. Thankyou in advance.