Tell him to fix it himself. You can buy the glue anywhere. I bought some on Saturday for mine at Auto Marine Specialties in Calgary. They charge $75 for the 1qt can and a bottle of hardener. But I think a prerson can get it much cheaper somewhere else. I would think you can get it at Gregs or Acklands. I needed all of about 4 tablespoons for my repair.
http://www.rema.com/cold_adhesive/prodb.htm
The stuff is called SC 4000. The hardener is called E 40. It is made by Rema Tip Top. I should have gone and checked it out before spending the money they wanted there. But I didn't have the luxury of time.
One thing I'd never do is bring another motor in to Auto Marine Specialties in Calgary. I took my 9.8 Merc there and they did the water pump which is ONE thing I wanted them to do. But also wanted it running. He said he had it running. $175.00 I have never had it work for me to this day. That was two years ago. Also took it into B$L Marine this spring. They said it worked just fine. $225.00. I took it out on a lake and gas spewed out the carb. It did not run. I took it home put it on a stand and also found now the bottom end prop seal is out of it. So far spent $400 and it's still not running. Man I'm impressed with both those shops.