From what I am hearing, it sounds like I may want to do the ground install. This brings up a whole bunch of other questions.
1. What kind of ground mounted pole should I buy? Depends on the height that you need. For a regular height motorized 90cm dish I use a 8' galvanized 2 3/8" fence post. The motor clamps onto the post and fits nicely!
2. How deep do I dig the hole to place the pole and what about the cement? Depends on the soil type, frost line, water table. I try to dig 2 1/2' x 10" in regular drained soil in moderate climates. Rocks and boulders will make you reconsider how deep you want to dig.
Water level can pop a post out of the ground and clay can dry out and the post can tilt, so be aware of the soil type.
3. What is the best way to run the cable from the dish to the house? Underground type, quad shield, RG6 coax would be best. Use a piece of PVC pipe with a sweep elbow at entrance exit to protect from weed eaters and other damage.
4. I assume I will need to dig to have the cable ran underground along that path? Trench, use a straight blade trench shovel or edger to slice the sod and fold back. Best to bury 18"+ but if no gardening or other traffic, I have seen the coax just under the sod. The deeper, the less problems with rodents and gardening tools.
5. My house sits on a slab, so I assume once it gets to the house I will need to run it up along the brick and get it into the house in the soffit? Depends on what is best for each install. Some drill through wall others run into crawl space, wall fish, etc.
6. Is there a device that I can use to determine that I have a clear line of sight to the arc of satellites from where I decide to put the dish? www.dishpointer provides the elevation and azimuth for a compass and an angle finder. I use the Dish Pointer iPhone app that overlays the satellite arc over the camera. There are many similar iPhone and Android apps that can overlay the satellite arc and work with the internal compass and level to show exactly where the satellites are in the sky.