The only carp or carp like fish I would recommend putting in a pond, and that is only if necessary are Triploid Grass Carp.
Goldfish are a PITA to get out of a pond, and even stocking a lot of LMB didn't help. When they spawn, they will revert back to golden/silver colored color in a few generations and won't look much different than a common carp does.
I agree with Bill Cody, if you absolutely have to have some color in it during the summer, one Koi. For the winter months, you can stock the golden morph of rainbow trout.
