Omnichord Fix

Hey edmontonians. Does anyone know who I could go to about fixing up my Omni 84?

The sustain isn't working and it's very very crackly and I was hoping there is someone out there who could fix it up. I bought it from marketplace two years ago and it wasn't in lovely condition then, but as it's sat in its case it seems to somehow come out worse.

Thank you in advance!