Sid,
If you trust your nominated Indie then fine, give them the list of parts as outlined on this thread and tell them you want genuine VW/ the most up to date variants of these parts and they should be able to get them for you with ease.
If you want to get the parts and give them to your nominated Indie, then all you need to do is supply the list of parts to a VW parts dept and just ask if there have, since those part numbers were created, been any more recent updates to those parts.
For example, when I got the list of parts from this thread, I telephone the VW parts dept, spoke nicely to the chap working there, explaining the situation and he gave me his email address, I emailed him the list and he checked the VW parts computer to ensure they were all correct and up to date current, before emailing me back a diagram of the parts and part numbers along with prices.
it should be very straightforward.