My car was used to carry pieces of stone in a past life and as such the boot plastics are all cracked and scratched, but coming home from work recently I noticed a Magna similar to mine at the wreckers.

The parts I am talking about are the plastic liners on the read door of a Magna wagon. Also most likely the plastics above the rear wheels also. The shady guy there quoted me $50 for just the speaker covers (he misunderstood me) then said $50-$60 for the all the plastics on the read door once I had cleared it up for him. Is this a fair price?