I recently bought a lot that included almost all of the parts for a set still sealed in the original bags.  I would like to find a source for the other bags of parts so that I can package them together as a "new" set, but am not sure how to find someone selling in this manner.  I am sure that people part the set out for sale on BrickLink, but I am not sure how to interrupt them in the process of parting out the set in order to get the full bags.  Anyone have thoughts on methods to do this?

Your best bet would be to make a wanted post on the BrickLink forums. The odds of coming across the particular bags you need any other way would be fairly low.

Yes, I agree - you could get lucky and find the bags by searching eBay, but that would take a lot of time and may not ever come about

Is there a way to tell what set a bag came from? Or a site that lists parts by bag for a given set?

 

I have placed orders on BL before and had the same thing happen new bags come with the parts I need. Just wondering how people figure out what is in each bag. 

Your best bet would be to make a wanted post on the BrickLink forums. The odds of coming across the particular bags you need any other way would be fairly low.

That was my first inclination, but I am not sure how many people read the forum posts on that site.  I have been buying and selling on BL for quite some time and never spend any time on the forums.  At least it is worth a shot.

Thanks for the input.