My Dnepr MT-16 has the spin on oil filter. Though registered as a 2000 model, papers I found in the trunk indicate that it was built in 1998. Ramco offered a spin-on oil filter kit for older engines, it included a new crankshaft as well as the aluminum casting with the oil filter holder.
In 2007, when KMZ stopped building Dneprs, they were not manufacturing any new parts, everything was assembled from parts in inventory, they even bought back an order of about fifty new motorcycles that they had sold to a company in Romania. They had offered those Romanian bikes to RAMCO, but Lloyd Lounsbury, RAMCO's owner, researched the Romanian bikes and found that they had been stored outside for years and were in poor shape, so he said no to that deal. KMZ told Lloyd that they had lost the tooling for the toaster tank so they couldn't sell him any new gas tanks.
I visited the KMZ factory in 2003, it was enormous, a small walled city inside the city of Kiev. Only a portion of the factory was dedicated to making motorcycles, they refurbished tanks and other tracked vehicles there also. The property was worth more than the business that was there, so it was sold off.