Considering NX10 + 30mm

Last month I bought the Samsung EX1 as a backup camera to take with me on my summer holiday trip to Italy. I also took my Pentax K-x + several lenses and flash unit with me as my main camera.

I ended up using the EX1 almost 99% of the time. My DSLR gear stayed in my suitcase except for a portrait session of my kids on the day before we left home.

This is what my Samsung EX1 delivered:

2011

Some Pentax K-x pixtures:

After we returned from Italy I started reconsidering my camera gear. My ideal camera is small, but includes a viewfinder. I also like shooting with small pancake prime lenses. 30mm FOV at APS-C format would be ideal with my personal shooting style.

Right now I'm considering the NX10 + 30mm f/2 lens. I can get this kit brand new for € 379,- right now.

I would add a Pentax adapter to use my Pentax K-mount legacy lenses:

-Vivitar Close focus 28mm f2.0
-Pentax M 28mm f/3.5
-Pentax M 50mm f/1.7
-Pentax M 100mm f/2.8
-Pentax M 135mm f/3.5

I also would buy an adapter for my beloved Konica Hexanon 40mm f/1.8 lens.

When I buy a dedicated Samsung flash unit I can use this on both my EX1 and NX10.

Selling off my Pentax K-x/ Pentax AF lenses and other stuff will easily fund this switch.

I know there is a NX200 around the corner as well as a Sony Nex7, But I never buy cameras at the introduction price, so I would have to wait for another 6 months to buy one of those.

My questions:

-Would you abandon a great DSLR system to a good, but much smaller alternative?
-How is NX functioning with legacy lenses
-How is the visibility in daylight of the LCD screen?
-Is it worth it to include the 20-50mm kit lens for another € 150,-?