Playing up the neck is always fun and sometimes intimidates some players. However, it is just a matter of learning your neck and the chord patterns all way up the neck. When playing Scruggs style, you MUST learn to play the basic chords anywhere on the neck. Let’s take the G chord for an example. You can play open G by just strumming the strings and not use your left hand. But you can also play the G chord using the “F” position with the ring finger at the 5th fret fourth string; “D” position with the middle finger at the second string at 8th fret; now using the “bar” position at the 12th fret; now repeat for the last to chords of G. This is a total of 6 G chords that are available on the banjo neck.
I hope this helps you jump in there and start to learn the other chords as well. 