Zavasta actions were imported for years by Interarms as the MK X and they are wonderfully made, the fit and finish may need some custom work, but they are excellent bases to start a custom rifle from. Frankly, there are some MK X actions out there that were finished very well, others that weren't done as well. I have an old Interarms Viscount rifle in 7x57 that has a blond stock and blue job that would make any manufacturer proud. I had a later 243 barrelled action that looked like the finish on a chinese SKS...machine marks, etc, but still a great action for the price.
regards,
graycg