Budget Shackle Bushings

[Jasons72]

I'm running Hotchkis 3 inch drop leaf springs on my 72 Nova and no matter how much i grease the shackle bushings they squeak and squeak and squeak. I'm also running a fairly tall tire on a 15" wheel that needs about a half inch more backspacing (they are temporary until i can afford 18's). I'm going to make a new plate for the shackle to raise the rear about a half inch to get the tire bulge from rubbing, its not really bad but if i hit a really bad bump it will graze just enough to leave a brush mark. I want to go with new bushings but i don't want to spend 180 plus on the global west bushings when i'm not even going to use the plates. Are there any solid bushings available for the rear of the leaf spring and the frame?