You have an all to typical 'Seattle' TVFR... At least one hill in the way.
This is a tough situation, similar in many respects to what I was facing at the house I just moved from in NW Seattle.
The following is one approach... certainly there are others.
The Capitol Hill, Queen Anne Hill call for a large UHF mounted as high as you can practically and safely achieve. Antennas such as the Antennas Direct 91XG or Winegard HD9095P are appropriate for going after the Queen Anne Hill group (KOMO, KING, KONG, KIRO) (KUNS is still on Tiger Mnt. despite what's shown in the TV Fool database). I would connect an FM trap followed close by an Antennas Direct CPA-19... the signal out of the power insertion block connected to the UHF port on a UVSJ. It's reasonable to hope that a usable compromise aim could be found that would give you the KZJO signal with this antennas also.
Antennas such as the Antennacraft Y10713 or Winegard YA1713 would be the type I'd choose for receiving the real CH-13 signal from Gold Mnt. On this antenna, I'd install an FM trap, followed by an Antennas Direct CPA-19 preamp. From the signal out of the power insertion block I'd feed into the VHF port of the same UVSJ mentioned above.
Your shot at Tiger Mnt. is enviable and should not require a big antenna. You may get lucky and see a reliable signal from an antenna aimed at Capitol or Queen Anne Hill. If that doesn't happen, you have to decide if another antenna is going to be used, the CS2 would do quite well but you'll need to decide how to combine or otherwise switch all these antennas. Consider this idea...
http://forum.tvfool.com/showthread.php?t=2882 or even this idea,
http://forum.tvfool.com/showthread.php?t=820
If you don't see the signals form real CH-9 and CH-11 reliably on the Y..713 mentioned above, you'll need to consider a second Y..713 antenna. I expect that it will need to be combined with the Tiger Mnt. UHF antenna.
On a general note, You need to see a usable, reliable signal at the antennas terminals
before bothering with a preamp. A preamp is only able to 'repeat' what is 'hears'. If the preamp is fed an unreliable signal, the best it can do is output a stronger unreliable signal.
Finally, an alternative approach might be found using tuned channel combiner product from
www.tinlee.com.