This would make a great project and is perfect for veroboard.
Here is the schematic for the theremin:
http://4.bp.blogspot.com/_y4AYtND8Hz8/R-D1JQQcF9I/AAAAAAAAAKI/upWnOEC87_g/s1600-h/vsex_probe.jpgAnd here is the schematic for the colorsound wah that the pedal is based on:
http://1.bp.blogspot.com/_y4AYtND8Hz8/R-D1JgQcF-I/AAAAAAAAAKQ/cQHq4BwyzCI/s1600-h/colorsound_wah_vsex_mods.jpgGuitar freak did them on perfboard but Vero would be better.
Thanks