Okay, how about this from StayOnline.com:
http://www.stayonline.com/custom_power_cords.aspxIt took a bit of searching but the Nema 5-15 angle plug can be found left/right/up and down style. One of those might work. I don't know if my selections on the linked web page will show but I looked at
Male connector-NEMA 5-15 angled left
Female connector-IEC60320 C13 right
Length and cable-3 feet and 9002 SJT 14awg
which gave me a stock cable available for $ 7.00
The price for custom assembled with different options ended up costing $ 42.00 each.