Lightroom :: Send JPEGs To Clients For Quick Preview

I'm shooting in both raw + jpeg..The reason is simple. I almost immediately send jpegs to my clients for a quick preview, and then I process the raw files.

In addition it has to be said that often the in camera processed jpeg has a very high quality standard and no further raw processing is required.I take a lot of time in popoluating the LR catalog with keywords, flags, ratings and so on.
 
I would like to work only once in putting keywords, flags, pick/unpick and ratings to a shooting set. Then send a sub set of selected photos (according to some LR filtering) to my customer in JPG format, and start working on the raw files of this selection...The problem is that I would like to send to the customer not just a JPG conversion of the raw files, but the original JPEG generated by the camera, which is almost more "pop" and of impact than a JPG export done without spending time in tuning the export presets: the camera generated JPEG is normally better than any raw export made with basic settings.
 
But I don't know how to do that because if I import in LR RAW + JPEG as separate entries I have to tag, flag, rate and keyword them twice. I have to put the same rating to the JPEG version and then to the RAW version. On the other hand, if I import them as a unique entry I get benefit in making the keywording flagging rating and tagging job only once per photo. But in this way, even if LR har information that the picture has a RAW and a JPEG, I completely loose access to the original camera generated JPEG file. Because when I export the output of a filtering selection I can choose to export as JPEG, but this is a new JPEG generation from the RAW, according to the develop settings that I may have or have not done, and if I export as original file I get only the RAW files, but no more the original camera generated JPEG files.