I am in Canada so the magneto had the magnets recharged at Adrian's magneto Service in Manitoba Canada, there are more places in the US to get them done, check out the SMOKSTAK website and look in the sponsors list.
The coil is new and came from Zach at the maytagshed, search for zkstuff on ebay, he has lots of Maytag parts.
They are pricey though, I wanted to keep the system as original as possible so I popped for the coil.
It was something like $150 or $180, one of the single biggest expenditures on this build, but I wanted it.