Hello! Nice to meet you!
I can do the work you need. By using a musical notation software I can construct all the scales, arppegios and chords, and then export them to MIDI file. Very simple! isn't it? I do it all time when composing.
I only have 3 doubt:
1. What speed would you need?
2. You say from C2 to C7, is that just the right hand? That is, does that mean you want five octaves per hand?
3. Are arppeggios and chords only majors and minors?
I propose you the following:
The file with scales takes more time to create because have much information, for that reason
I will ask for 40$.
The rest of the files are more simple, I will ask for 15$ for each one.
Delivery time would be 1 to 3 days, depending on how busy I am.
If you agree offer for me and I will be happy to help you. :)