Roofer Job in Shawville, Quebec

This is a refoofing job.near Shawville, Quebec. I believe there may be water damage in a one area which would require wood replacement. I also believe existing shingles should be removed. Approximate size of the roof is 30x60' with approximately 20x25' being a hip roof. I am looking for estimates for both asphalt (25 year) and metal (aluminum) roofing. Installation of water diverters should be included. Would like to discuss metal roofing options (type of metal, styles, colour, etc ..) as well as asphalt, pros and cons. Timeline would be September/October. References are required.