I was going to make one for mine also untill I seen what you can buy one for.
I had J&J make one for my car and other then a couple little modifications it really fits great.
For ballistic material and $150 cost wasn't worth the headache making one myself.
67 Barracuda street/bracket car 11.27-119
68 Dart 9.16-145
414 cid SB Dragster 7.65-174