I made my VG's for my SM Hawk from a strip of 3mm (0.1") angle plastic. I was going to use brass angle, but I could get the plastic angle from my LHS.

9mm long with a 30deg taper on both leading edges. I made a small jig to cut them out easily with an Exacto knife.

8 per side. There was a very good dimensioned drawing on one of the larger Hawk (Tomahawk of Skygate, can't remember) threads a month or 2 ago that gave the placements. I just scaled it to the size of the SM smaller Hawk.

Paul