Hello,
custom made shoes are great. But there has to be an alternative betweenb cheap and this huge amount ;-)
The evers shoes for example are great and are totally adjusted to your unique feet. https://www.e-vers.com/en/
Sold here...
I can totally recommend Bobshop - a German shop I guess.
Top quality and regarding the TDF - best Pro Team kits: ;)
http://www.bobshop.com/en/Pro-Teams/Pro-Team-Clothing/
But also other stores like fahrrad.de have good stuff.