Scrump, when you buy a Rare Earth pickup, it comes with a jack socket which you can fit in the end block.

BTW, you don't DRILL the end block, you should use a REAMER, which is far gentler and much less likely to damage the timber. The instructions with the Rare Earth tell you all about how to do it, and what size reamer you need.

However, I personally wouldn't faff about with a Rare Earth - I've had two, one in my Lowden and one in my Martin, and they always sounded too 'electric'. Get a Highlander under-saddle transducer fitted by a good luthier/guitar tech, very powerful and a great 'acoustic' sound. IMHO!
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