Aubrey,
To my understanding, a previous year 49pack is rolled into next year's Audiophile. So to be current, you have to update to 2025 and get the 49 pack.
As far as all other Xtra packs, (which potentially can have RTs) Why not download all those installers to a separate folder? They are much smaller than RT sets, so not a big deal to store them as a local backup.
Last year I tried (successfully) running compare>add script for audiophile. Process was painfully long and there were some errors I had to fight. I think it's better to spend 15-20 minutes, figure out what you bought as far as Xtra packs go, download their installers and do a clean Flac install +Xtra stuff when drive arrives and live happily ever after. But hey, it's your call.