No, you can actually buy home building kits on Amazon. Go take a look.
Edit, updated with a link. Allwood Eagle Vista | 1336 SQF Cabin Kit https://www.amazon.com/dp/B077L6KSGM/ref=cm_sw_r_cp_apa_yHQRBb36PZ88R
My depression is screaming to take the first option, but I know that everyone else seems to think that is a bad thing to stay away from the scary world outside. first I'lk buy this then I'll buy this kit then I'll see if I can find contractors willing to tear down my old home and build this new one in exchange for goods and Amazon gift cards or just buy millions of dollars in prepaid visa cards. I'll have them rig the house with solar power and a rain water collection, purification, and heating system. The one issue might be that I might have to move to get food delivered beyond the pizza, sandwiches, and Chinese food in my area.