47-55.1 Wheel spacer question

[8man]

I got my first ever wheel spacers - Hubcentric 2" - for the S10 frame under the 48. I put them on (we'll get to that) and the front tires are spaced nicely. However there are 2 issues.

The first is more critical. When installing the rider's side it went on snug, but bolted up to the spindle. On the driver's side, I carefully bolted it on to keep the small space between the spacer and the hub. I can see daylight through it. I don't think that is right and was wondering if I should take a Dremel to it to make it flush up?

Second the new spacer has 1.25 Metric studs. Of course my 85 S10 has 1/2" x 20 studs. I was wondering if I can just press out the metric studs and go back with some 1/2" studs?

Thaks.