Sorry….. the solar panels will be mounted to the Iron Ridge rails which will be attached to the mounts that are bolted through the plywood roof deck and into the rafters so yes it is a project. What ever mounting system you use will spell out the spacing and attachment details. A roofing contractor can remove the metal tile panels in the specific locations, install the mounts cut the holes in the roof tile panels and then reinstall the tile panels making sure you have a waterproof connection. Building inspector may want to sign off on the attachment process too.
Sometimes people will opt to remove the roofing tiles all together in the area where the solar panels are to be installed, install the mounts and use a composition shingle over the roof area where the panels will go so they aren’t walking on the metal roofing tile, then when everything is installed the roofer can fill in areas around and up to the solar panels. From the ground it looks like the original tile roof.