I did my own matching. In total I bought 70 2SK170's, measured Idss, and chose 2 quads, two pairs and a reserve quad and 2 reserve pairs. I sold the rest.
You can measure Idss yourself if you want, but I guess a package of 4 will be matched, so just use 2 packages as quads and one package for 2 pairs (I'm assuming you bought the PCB's from Pass diy which come with matched FET's)