Dittersdorf HELP!!!

I'm a college student who's teacher doesn't really do solo tuning. But he's having me work on the Dittersdorf Concerto No. 2 in C major. (really in D with solo tuning) The only problem is that then I have no piano part for it because I can't find a piano part in C...So if anyone knows of any editor that did one or had a teacher transpose it I would appreciate it, otherwise my pianist and I will be.
I'd appreciate the help looking for this because I have NO idea where to find this! My teacher has to be so difficult!!!