the only part of the a/c lines that may have to be fabbed is the end connectors that hook up to the compressor, if you want oem quality with as little fabbing as possible get the stock lines for your car ( junk yard or check for sale forum ) and if the compressor connections are different then just have the a/c shop fab the right ends onto the stock lines. If the a/c shop will warranty the lines then let them do it all. also check that the compressor and lines are compatible with the same type of refrigerant, the old shit is the r-12 and the new is r134 ( it may be the other way around ) I would make sure that you can run the new stuff since it is cheaper to fill up with by $30+ a can. given the year of your car I don't think it will be a prob but I can't remember when the switch was done on vehicles from the factory.