I personally cannot understand why anyone would register old aircraft when the minister of infrastructure announced on Thursday that all passenger jet aircraft over twenty years will be removed from the Ukraine register before the start of 2019.
Nothing in Ukraine is as it seems. Had plenty of experience there and I strongly suspect enforcement will be another matter, that is nothing will be done, just another charade... Russia did similar... or at least on paper... never went anywhere. So, believe it when I see it
You are there (from your location details) so I am sure you know how things work!