ManfredThis is what you have to choose (and what i chose):
Case Style: Classic
Case Material: Clear Acrylic
Switch Type: Cherry MX Clear
Keycaps: Clear Plastic DCS (+$49.99)
Add a MKC Keycap Puller: Add MKC Keycap Puller (+$8)
Add 130 Tex O-rings: No O-rings