The Dust shouldn't cause a problem, just make sure everything's "clean" when you are assembling, no grit that you can see or feel. You can use plastic, garbage bags etc.. to cover/rap parts. No Rags tho' the Lint from them can/will cause big problems. Blow everything off with compressed air before assembly.
May catch a Deal on Evilbay etc.. on a Uni Cam Bushing remover/installer tool. That's what I did, got one like above new for $70 shipped.