Welcome to the forum!
Any Pentax DSLR will work with those lenses with the appropriate adapter. I recommend the genuine adapter to ensure proper fit and you don't loose infinity focusing capabilities, or at least ensure the adapter you are getting is capable of that.
But back to the DSLR, it all depends on your requirements and budget.
Do you plan to use these lenses only? or do you plan to eventually get modern autofocus lenses?
Do you need the DSLR to be weather resistant? Not if you intend to use these lenses only.
If you are using older manual lenses like these, you will benefit from a split image focusing screen. There are several aftermarket companies doing those for different models. Katz eye (spelling?) are very popular, but I'm not sure if all DSLR models are capable of this.
Does it has to be new or can it be a second hand unit?
Do you plan to print or just digital display? Is this for your own enjoyment as a hobby or do you intend to get "commercial"?
Based on your requirements and budget you can close in your choices from a wide spectrum of possibilities. From a classic *istD to the latest K5.
I don't think this helped much did it?
Thanks,