yes to your first bit, not practical for your second bit and like the maintenance sections have a sticky in specific Mk section labelled Modded Parts?
Simple really,
Golf Mk4 >>> Parts for Sale >>> Modded Parts
Parts for sale is for general mk4 parts
In the Mk4 section have another link to a Modded Parts Section
...
just wondering really as there are so many parts flying about on the for sale sections and people referring back to the sales sections in threads for parts that theyre selling.