2029 or 2019? A small difference, but nonetheless important. At my age, one shouldn't rush time too fast in that direction...
At that time I was madly keen on the Df, and in fact had quite a llengthy discussion with it with the late (and sadly greatly missed) Roger Hicks, who told me it was the one and only digital Nikon he ever thought he could live with.
IN those wonderful past years I had ongoing chats with both Roger and Frances. Who I both sadly and greatly miss.
I lucked out on one at Michael's Photo in Sydney at about this time, 2019, which was in their used gear window at, IIRC, +/- AUD $2,000 with the legendary (not sure why, but apparently it's the stuff of legend) Nikon 58. I did think a while about buying it and eventually I returned to look at it a few days later, but guess what - it was sold. Gone and lost forever, to me anyway.
So for now it's D800 and D700 gear for me. Good enough, in fact more than - but not quite the same 'cachet' at the Df.
As for the Zf, well, time will tell. For me...