$500-2000 depends on what sort of shoe, where you buy it and so forth. If you go to a poor country it can be had for a lot less though. It might well be worth to have that vacation and find a shoemaker. You certainly will not exploit them nearly as badly as Nike.
I have never had shoes that fit my feet. Ever.
How hard/expensive would it realistically be to design and build/have built my own shoes?
$500-2000 depends on what sort of shoe, where you buy it and so forth. If you go to a poor country it can be had for a lot less though. It might well be worth to have that vacation and find a shoemaker. You certainly will not exploit them nearly as badly as Nike.
Ha. As if I could afford a vacation.