If you buy almost any KORG MIDI controller (like the nanoKEY or microKEY), you get a massive bundle of software for free or at a deep discount.
The "Montpellier" gadget inside KORG Gadget is a faithful recreation of the Mono/Poly and is often much more affordable than the standalone plugin. If you buy almost any KORG MIDI controller
Instead of risking your data, here is a "deep dive" into why the is legendary and how you can access it safely and legally. The Legend of the KORG Mono/Poly AAX x86 x64 [12.2019]
KORG - MonoPoly 1.2.2 STANDALONE, VSTi, AAX x86 x64 [12.2019] If you buy almost any KORG MIDI controller