Very intriguing cabinet, and nice work matching it to Outer Space / Orbit / Space Orbit.
The game certainly has the Italian backglass. There are many Jungle Life photos from Italian owners on the Pinball Owners DB, and all the ones I viewed had the traditional swirly art.
The photos on IPDB are the only ones I have seen where the skull & crossbones spinner was added
Have you been able to look inside the cabinet/head for a serial number?
Neat game!