Syncing some songs onto iPhone hard drive via USB but streaming rest via iCloud

Hi,

I have a lot of music, well over 50 GB. I have iCloud and iTunes Match. I recently got a 32GB iPhone 5. I was under the impression that I could sync some of my music library onto my iPhone via USB from my mac, but then still be able to access the rest of my songs via iCloud?

1. I live out in the country where cell service and/or Wifi is not always available.

2. I would like to have the songs I listen to most on my iPhone's hard drive, so I don't have to waste my data to stream them. However, if there's an artist that I don't listen to very often and is not on my hard drive, I would still like to be able to pull them up and stream them via iCloud.

When I had iTunes Match turned on on my iPhone, I would press Sync on iTunes and nothing would happen. I could access all of my music on my iPhone, but none of it was actually on the hard drive, it was all just streaming from iCloud. Searching around online and on these forums, I found that the only way to actually put music onto the iPhone's hard drive is to turn iTunes Match off. However, I also read that if you turn it back on after, it will just erase your previous library?

It seems there should be a way to do this? I can't be the only person with too many songs to fit on the iPhone that doesn't want to pay to stream every song?

I have also heard a lot of bad things about syncing via Wifi, and that it will eat up your data plan. I would like to be able to sync my songs via USB, but then still access the rest of my library via iCloud.

Please let me know if this is possible. Any assistance is appreciated.