If you have a basement and are a DIY type comfortable with drills and sheetrock repair, you can get wiring in that way. If not, find a low voltage installer or an electrician familiar with low voltage work to get the cables in. Camera mounting will be determined by testing proposed locations using a test rig as described in the
WiKi. The test rig will allow you to determine pretty much exact locations and the proper lens needed for each camera.
Generally speaking you'll want two cameras near the front door, one for facial recognition and one for package monitoring. In you case, I'd say four for the garage area, one on each end and one between each bay especially if you park cars out there at night. The projecting bays make placement to cover the other end of the front a little tricky and, again, that test rig will help to determine those, but I'd plan on at least two cameras looking back toward each other for overlapping coverage.
Don't forget that masonry bit and maybe a roto hammer/hammer drill as well.