3 1/2 Octave Box Resonator

This instrument stretches 3½ octaves, beginning at the "C" below middle C. That's enough room for 3 or more young malleteers! If you can only afford one marimba, this one gives you the most bonk for your buck. 

I have modified this popular box resonator design by adding wheels, allowing the teacher to "break down" the instrument, roll it about and store it upright - a real plus since many music classrooms are so small! $1200, add $100 for optional F#/Bb bars.

Here's a great video from South Africa showing this type of instrument (not built by me) in action.