I currently have front manual drum brakes....:( I want to do a power disk brake conversion at the same time as my front suspension re-build.

Sorry if this seems like a silly question but, will I be able to use my existing brake hardlines?

I replaced my front hard lines and added about 12" to my rear hard lines to make it work ( different size fittings and entered at a different location)
this probably varies with different kits...
Mine was power drums also.