Board made of 2.5mm Tufnol from qtasystems.co.uk. Solder eyelets dia1.7x3mm from Fullex Electronics Ltd aka (WellProduct) e-bayer in Hong Kong US$13.96/200 shipped, wellproduct323@yahoo.com.hk. Eyelets have a 1.3mm hole, will take 16 AWG wire as shown, other sizes available. Ground a bolt to make a flaring stake.