It's too bad you had so much trouble getting the spacers made. I know I gave you the "plans" I had in the past.
I've had the ones that I had made on for over a year now without a problem.
I only paid $80 for mine to be made but I bet it would cost $120 to ship them anywhere.
I just got some screw in studs
www.aerostitch.com. I'll be screwing them in for those snow storms where I'm too lazy to chain up the rears.