When one clicks on the KRMA call sign link on your TV Fool report, the path profile appears rather severe. Still, I would be willing to spend some time and money trying. That there are few antennas is not that conclusive... the cable and satellite providers have had 40 years to train people to think they have no other choice that to pay to get TV signals.
So, to answer question 1, My estimate is that your chances are around 40% to 60% that you'll be able to get reliable reception of KRMA. To do so will require a large antenna. My choices (in descending order of preference) would be a Winegard HD9095P, Antennas Direct DB8E (not the older DB8) or an Antennas Direct 91XG. The antenna would need to be pointed southward (165° compass) and may benefit from being tilted to aim at the ridge line of the mountain top on the horizon. To distribute this to several TVs and/or drive a long cable run, use a CPA19 preamp from Antennas Direct.
Re. Q-2, Inquire with and check the references of electricians with low-voltage & home-automation experience, structured cabling installers, home theater system installers & satellite system installers. You would want to do due diligence to confirm their experience, and customer satisfaction... it can be a challenge to find someone with the skill, experience and tools to do the job well.
The remaining signals in your area include some VHF channels, so I would opt for a High-VHF antenna such as the Antennacraft Y10713. I would experiment with it's aim, either northward or to the south. It can be share the same coax down-lead as the UHF antenna, use a UHF/VHF Signal Joiner (UVSJ) between the antennas and the preamp.
If you want to add the stations from the east, you would likely need to build a separate system with an Antennas Direct DB4E facing east. The down-lead would be separate all the way to the TV(s) where you would have at least a couple of options for how to connect.
http://forum.tvfool.com/showthread.php?t=2882