Others are definitely seeing this challenge. My wife and I were worship leaders in a small church in the 70's to the 90's and most every song we sang was suitable for small groups. Today if we are to try those songs, no one would know them.
As a musician I appreciate the newer music, but agree that the older stuff was much better for home meetings. I would definitely enjoy what you are doing. Now I feel challenged to teach the older songs to our home bible study group. In another group we have been a part of the children regularly requested Rich Mullen choruses like Step by Step. Maybe it is worth a try.