From K10D to K-x or wait

Yes I know... there will always be a better camera, If I wait always I'll never upgrade...

But here is the deal for me:
I have a buyer for the K10D
I want weather sealing and "pro" build quality like the K10D
I want the big screen and high resolution and the K-7 viewfinder
But I'm going to India on monday and can't afford the K-7 right now.

So your advice please:
Should I Keep the K10D or
Get a K-x as a temporary replacement until K-7 (K-5) can be bought.

I'm looking for you input on:
Viewfinder
Ergonomics
AF

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