Honestly, if you have that little storage and can't really increase it in any way, you unfortunately might just want to sit this one out until you have more space.
If you're on Windows, try using NTFS compression for some folders or the entire drive, right click -> Properties -> Advanced -> "Compress contents to save disk space". The VotV 0.8.2 folder goes down from 5.93GB to 5.08GB, for example.