If you are putting on a Strut Spacer you don't need to flip the strut mount. That is only for if you use some spacers and don't have a strut spacer to go with. Installing the coils are pretty easy, especially if your mechanic has a spring compressor.
Put the rig up on blocks, pull off the tires, remove the strut. Some people remove the bottom bolts, other the top. Either way works. Remove the anti-sway bar. If you don't have enough room then disconnect the steering as well. Pull out the spring and the rubber seat on top. Put in the spacer, put the rubber seat back in, put in the spring, bolt everything back together.
On the drivers side you may need to disconnect the top half of your CV shaft. On the passenger side you might need to slide the CV out. Be careful you don't wreck the seal. If you do you the seal is the same on the Vitara and Grand Vitara front end, Passenger side inner axle seal - SGP Part #: 09283-3500.
For the rear you just pull the shocks and jack it up, much easier then the front.