>What is the best way to plate through holes on a milled PCB.
>
>Is there any suggested sites or tutorials.

Well, if you are going to mill the PCB, then probably the best way is to use 
pins that are designed for repairing PCBs.

Otherwise one gets involved with hazardous liquid chemicals, and surely the 
main reason for milling PCBs is to avoid hazardous liquid chemicals ... 

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