I'm surprised more people don't know about this! You can actually craft the keys to your very own tractor! (Be aware you still need the perk to use it though)
3x Steel Gear
3x Stainless Steel Place
1x Green Dye
You don't need to pay that ridiculously high sum of 25k recubes in the store to get it, just craft it.
(Not sure if the devs know about this, maybe I'm not supposed to tell anyone. Eh....)
Enjoy this before it gets patched :D