Breastplate of Azure Reveries - 10% (far better than DF bodyarmor btw )
Gaily Painted Hood - 15%
2 * Mocham's Guard - 10% (find an exploit to trade them if u arent MP )
Izgimmer's Obfuscated Recompiler - 28%
Hardcore CPU Upgrade - 15%
(5*Enhanced NCU Chip with Recompiling Core - 1%)
=> nano cost modifier -93% !! (or -88% if u need some real NCU memories and -68% if u arent MP and dont want to get banned for exploiting ).