PCIe adaptor DIY question

[The Koolio]

Hi,

I need about 20 of these x1 to x16 adaptor ribbons but I cant afford waiting over a week for delivery, can someone show me how to make my own DIY style so that I can attach my 5870 cards to my motherboard x1 slots. Is it possible for me to just slot 2 cards into my x16 slots and then use two of these adaptors in the remaining two x1 slots? Also will I need dummy dvi/vga adaptors to make the computer think they are attached? If anyone has links to somewhere cheap in the UK that stocks these cables Id appreciate it otherwise its the DIY route, thanks

[Fuzzy]

This is what I use

http://blog.zorinaq.com/?e=11