Hello all, here is a final update on this thread.
The project is live! It can be found here: Flora of High Andean Peru.
I reached out to @marceloamores, who has made similar projects using complex geometry for the Páramos Ecuador project. He walked me through his workflow in Google Earth Engine and exported the elevation polygons for me, which were much smoother using his method.
@rupertclayton and anyone else interested in the alpine flora of Peru, it would be a pleasure to have you join the project! Thank you for your help.