Best Carpet and RS Door Card Options

[Billiam 911 2.8]

Hi everyone,
I am revising my previously gutted interior in my 1970 911. I am looking at installing the factory German velour carpet and adding some RS type interior door panels/cards. I want little to no "tweeking" of these to make them work. I will want quality over price (hard to get both). I have done some searching and the carpet kits can run up to $1200 and door panels up to $900. I am seeking feedback from those who have BTDT. Any helpful hints on the install are also welcome. Thanks.