copper vs pvc compressor lines?

Black iron pipe as already suggested. Fairly inexpensive, mine has been in service for years with 0 issues. Run a flexible line from compressor to pipe and I think it was 35 ft minimum for the length to allow the air to cool. I have maybe 40-50 ft 3/4 pipe ran in a u pattern to get my length then where my hose hooks up it raises up in another u shape with a drop leg after it, doing it that way further reduces moisture making it to tools, paint or whatever your using. Google for air compressor pipe layout and you'll find what you need to know.