I'm looking to get some "dust caps" made for the sockets on my car. These sockets are on the roof posts and are for the bolts to the roof bars. There are 4 on each side. 2 on the A post and 2 on the B post. The plastic ones have become very brittle and a majority have become damaged or lost. I was hoping to get replacements made from metal (aluminum) but have been told that I'm looking at a very hefty figure of =A3500. I lack the skill and equipment to do this myself and was wondering anyone would mind telling me wether this was a reasonable sum. Each "dust cap" would be about 10-15mm long. The head would have to be at least 10mm across and 2mm thick. It would also require a torx or allen key slot to be cut in the top. So am I being reasonable or could this be about right.
Many Thanks
Oh and here are pictures of the sockets in question
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