I used to have a tape of the Melodiya LP of Golubev sym. 5 in A minor op45 (fine and even fun piece, especially that- I think impish is the word I want... - scherzo... was surprised how quickly Protopopov took it; I'd made a midi of a piano reduction of it at what seemed the right tempo but mine was rather slower. After hearing his, though, I took no convincing. Unfortunately, I accidentally destroyed a few tapes, that one included, some while after and haven't heard the work since.)
As to the Cuclin, will see what I can do. My digitized versions of the symphonies are as one large file (sym 9- well, 2 files, counting a 6-second opener that may be needed, will check. 40 min. in all, possibly also Elenescu as in the following) and 4 smaller ones (sym 11, Emanuel Elenescu/Orchestra Simfonică a Radioteleviziunii, ca.33 minutes; Allegro vivo- Scherzo - ?? (slow movement) - Allegro vivo) (keys of the 2 symphonies are A-flat minor and A minor respectively, memory serves). Good works, described to me by someone as Myaskovsky without the neurosis, which sort of fits, and with plenty of surprises...