PSD to Cubecart > integration

Hello all, We have few PSD's which we want to integrate it to Cubecart. Very neat and clean css coding needed. 1 PSD should be converted to Cubecart v3 and V4 (i think its the easy part if you done it for v4 then you need to remove some code to be able to run it for v3) We have regular work so give us best possible rates. Also please show us your previous cubecart or other e-commerce integrations.