I think I'd do an 18' megatree with 2-color super strings ... and make it 16 channels (around) x 2 colors (search light mode).
I'm not sure what your 32 strands are (same color, 2 colors, 3 colors).
If you have more colors, you might need to consider instead 8 ch x 4 colors ... and make each channel in "outline" mode (up one side, down opposite side).
If you want a smaller megatree, then just go up and back down and reduce the height as needed for your desired base size to fit your strings either unfolded
or folded.