Should be able to. Be warned that most paid versions are missing tracks. There's 25 tracks on the original UK vinyl version (and it's 3 LPs). Most other versions have 24 tracks (it's missing the 10 minute song [stone in focus]) and are only a 2cd set, and the US edition only has 23 tracks (it's missing [stone in focus] and [hankie]). If you have a paid copy of the album I assume no one could actually give you grief for downloading the 1 or 2 missing songs off pirate sites. I do actually have a physical copy myself (of the US edition).
EDIT: here's a link. Not sure how much of the address was required so I didn't snip anything off:
https://www.amazon.com/Selected-Ambient-Works-Vol-II/dp/B0017YPCPQ/ref=sr_1_1_twi_mus_1?ie=UTF8&qid=1474692753&sr=8-1&keywords=selected+ambient+works+volume+2
It IS the 23 track version. I think most paid digital versions are.