Wiring harnesses and vacuum lines?

Vacuum lines...?...do you mean the small colored plastic lines or just the hoses? You can get nearly any size vacuum hose at any major auto parts store. Just bring in what you need and they usually have the stuff on a roll.

If you mean the small plastic lines, you may have to improvise with something else or visit a salvage yard.

The O2 sensor harness. Do you mean the harness was damaged? I think you may have to snip off what you need from a "donor" harness at a salvage yard. Then splice it in.

advance auto sells little rolls of black nylon "emission tubing". youre not gonna get the same color or anything. i would just use rubber vacuum hose for the egr. the air pump lines are sorta convoluted though, thats why i took them off. check ebay for the o2 harness, 87-93 are all the same, so that should ease your search a bit. good luck!