Assuming a Pentax FF initially sells at $2399, then street drops to $1899, I would buy at that price point if it is = or better than a K5IIs is otherwise I can raie that money from sales of redundant lenses and bodies I have now (why do I have 11 50/55's).
I think the more important question is, "Will I buy lenses?"
The answer is, a few but I won't have money after I buy the FF unless I sell all my lenses.
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[EDIT] After the reminder below that this is a dream camera, if the K-mount was not crippled (i.e. aperture lever register enabled), with interchangeable viewfinders and modern flash capability.
But what is the point of a fantasy poll?