G'day John
Some jobs can seem pretty straight forward however body shops are in the business of making money....and every hour adds up....
Grab a mate and scribe to present hinge-bonnet location and then remove the bonnet and take it to your chosen repairer..
Pretty easy job really plus it seems it will require patch weld work/grinding/filler/prep and top coat on both sides of the repair location so the shop will charge you for something you can do.
Plus sides-your pride and joy can stay in your shed .
Your not paying hourly rate for an easy task they will ultimately need to do...150 saved is 150 saved
You may find they get the job done relatively quickly as it is basically bench and booth work..
Try and give them the most accurate paint colour code as well.