You may want to check and see if any of your sets were made into SAS transport files. These would have had to be made awhile ago and might have an XPT file extension (been ages since I looked at a VAX file system). If so you may be able to move those to your new system and import into SAS with Proc Copy.
This may be a long shot but if the files exist it may save more convoluted approaches.
OR if you have the raw text data files that were read by SAS and the code to create the SAS data sets then you could move those, update a few file related elements like paths and rerun the code to recreate the data sets.
But I may be the only person that obsessive to have the text and code ...
Barring that I second @SASKiwi on contacting SAS tech support.
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Learn how to install the SAS Viya CLI and a few commands you may find useful in this video by SAS’ Darrell Barton.
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