Welcome to the forum Virga.
Well, i'm don't think that is gold. Maybe gold plate, but i can'y tell from the photo. So i don't think a goldsmith will be much good to you. Is the pendok just crushed a little or is it actually broken open? Your pictures don't tell. Close-ups would help. Is the metalwork all connected or will the pendok slide off the stem? If it does you may be able to tap out the dents with a long stick and a rubber hammer.
Overall the dress doesn't really look like it is in seriously bad condition. Personally i would be more concerned about restoring the blade.
BTW, the blade might be from Jawa, but the dress is not. Sumatra maybe?
