The pinout:



I also made a sensor adapter for my FDR meter:



With on the rear large surfaces voor power and 1 sensor signal:



I used plain circuit board (I buy scrap material for a few bucks, also handy to make small epoxy parts). This was a first attempt, later ones were done on a mill with a digital readout with better results.

I have got a small and thin dremel tool like sawblade from Proxxon:
http://www.conrad.com/ce/en/product/...CRO-Cutter-MIC

Making grooves in the copper layer at a 1.5mm distance you can make the adapter plate.