Ok, it’s probably getting redundant. Nonetheless, I put my hands on the Żuk Budowa eksploatacja naprawa (construction, usage & repairs, published in 1992) and it provides a few more dimensions:
1642 height (but with ceiling included), really not bad and in the range how what we found earlier (1511/1589 without ceiling).
1538 for top width while we found 1497, good too.
189 exactly for the upper part from top of the back door to top of the roof, while we found 184 and 1352 width for the bottom back door while we found 1308 : we had a decent accuracy to earlier finds.
Anyway, Żuk Budowa eksploatacja naprawa is a must grab, covering Żuk no matter the engine (S-21, CB, 4C90 “Andoria”).