this helped me prepare:

https://chinese.miknight.com/hskk-beginner-sample-questions/ ;

this list is not exhaustive, but it's pretty good. I did the exam yesterday and got many of these sentences / questions. in part 3 I had one which is not on this list: "how do you practice Chinese?"

 it's more effective if your teacher / Chinese language partner reads out parts 1 and 2 (without you looking at them), this way it will be more similar to the actual exam. 

good luck!

I found these by searching on Tumblr. If you do a little digging in the "Chinese langblr" or related tags, you might be able to find more.

1. http://www.hschinese.com/en/intro

2. http://confucius.emory.edu/hsk_and_resources/hsk/hsk_samples.html

I see, so the HSKK is the speaking portion of the test? I did not know. My brain kind of skipped over that last K. 

I can't read Chinese so I don't know how reliable this one is, but this is one that came up: http://www.wmuconfucius.org/HSKK_practice

There also seem to be YouTube videos recorded as mock-exams.