The Ontario appraisal form that Peter referred to can be found at:
http://www.rev.gov.on.ca/en/forms/rst/pdf/1159.pdf
The french version is at:
http://www.rev.gov.on.ca/fr/forms/rst/pdf/1159.pdf
In case you can't get the links to work for you a copy is attached.
The form can be completed on computer, then printed if you wish. One gotcha that I noticed is that they want the appraisal done within 60 days of purchase, so don't delay until you are ready to move on to licensing to get an appraisal. Otherwise you might have to sell to a friend and then repurchase it for the same value just to have a recently dated bill of sale to be able to get an appraisal. Seems crazy.