Urgent - IDE 2 USB Build

that is not a easy job as the cricuits are complex and u wont get the components in the market. besides all these components are SMDs(Surface mount devices) and the require specialized machinery to solder them. also u would need a multilayer PCB(Printer circuit Board) with the circuit diagram 'itched' on it.
so just go and buy teh converter from the marker.. it would be hell of a lot cheeper