this is a not easy question. Perhaps you are familiar with hotmail. With the integrated editor it is possible to make text bold, italics etc.
What we are looking for is a system to integrate music scores (partititions!!) in an elearning environment. It means that the FCK editor must be enhanced. In FCK editor you can add Math/Latex formulas etc. We are looking for a system where you can load your MIDI, or finale or Sibilius files and that can display them.
If you see a solution, take contact. We are surely not interested in people saying they can do all. You have to give some possibilities and already done solutions in this way.
The budget is not correct because a lot of things depends on what exist and you can do.