Yep, if he is doing the whole job himself, go ahead and order the kits. However, if he is having a pro do any of the work, consult them first. The owner may want the material that matches, or a different pattern, and they will want to go over all the stuff before making choices, based on how stock looking, ease of install, wear, price, and warranty. Just like an engine is built as a system, an interior must be planned to work as a whole. It just looks terrible when the seat and headliner is stock and the welting and carpet is cheap mismatched replacement. Other combos as just as bad...
