[1971 K10 shortbox]

Mar K is the best. Here is a tip, call brothers and confirm that the trim they sell still comes from Mar K. Then wait for a 20% sale usually happens around a holiday. When I bought mine 8 years ago this is what I did. Your going to be spending over a thousand dollars, for both upper and lower trim. With the holiday discount code it was cheaper then buying directly from Mar K, and everything was just drop shipped from Mar K to my house. As for the hole locations they are called out in the assembly manual. Do a search on the site. Should be a PDF out there.