That looks like pretty customary shop rates and a "good" gunsmith would probably be similar.
I have experienced and heard of occasions where they just did a fix and returned the gun no charge regardless of warranty.
There's plenty of help here if needed and they are relatively simple if something is needed.
In Memory of Paul "Dietrich" Stines.
Dad: Say something nice to your cousin Shirley
Dietrich: For a fat girl you sure don't sweat much.
Cue sound of Head slap.
RIP Muggsy & TMan
"If you are a warrior legally authorized to carry a weapon and you step outside without that weapon, then you become a sheep, pretending that JOCKO will not come today."