Great tip!
I bought My Piano from FluffyAudio last week. It’s a nicely sampled small upright (sounds a whole lot better than my wife’s Knabe spinet!). Knowing that the $10 is going to Lombardi Relief may make you want to spend the ten bills now in case you buy Kontakt later.
They also have a number of freebies as well. Check all the instruments, not just the Freebies page. I really like Bamboo Xaxophone.
https://www.fluffyaudio.com/Yes, you will require the paid version of Kontakt. The free Kontakt Player will only play these for a limited time in Demo mode.
Native Instruments (NI) usually has a Black Friday sale where Kontakt and Komplete go on sale up to 50%. Don’t know if they’ll do it again this year, of course. For those unfamiliar, Komplete includes full Kontakt plus 150–900GB of additional libraries depending on the version you buy (Komplete Select and Start do not include the full version of Kontakt)..
Thee are so many excellent free and low cost libraries out there for Kontakt that it made sense for me to purchase Komplete (on a Black Friday Sale, of course) a few years ago.
Speaking of freebies, Komplete Start has a lot of sounds and you can’t beat the price.
https://www.native-instruments.com/en/catalog/komplete/