I like the K1ii but I hate how expensive the "best" lenses are. >>4433453 is right and it's made worse when this is the cheapest K1ii and the cheapest D810 is $500 less. $200 more and you can get into a Snoy A7IV (A7C is the same $1100 nowadays) and even if it's soulless mirrorless, the AF is that much better and if you get a EA LA4 adapter you can use vintage A Mount lenses that work with FF. I have lenses I like on both A and K mount so I'm probably gonna do a newer Snoy with a EA LA4 (which even then the AF is about as good as a K1).

Half my Pentax lenses are DA APSC ones that give noticable vignetting too on a FF cam. 18-135mm and 55-300mm PLM for example.