As 4C stated, try Sherman Parts for the sheetmetal you'll need. Their pricing is good as opposed to Year One's for the same items. I had to use both the quarter panel skin and a trunk extension and they work out alright, but expect to do more work than what you expect. Don't get me wrong, they're still much better than having to fabricate some of your own, but they do take some fine tuning to get them to fit properly.