I have Kindle and Kobo. The Wife had a kindle Paperwhite 3 and upgraded to a Kobo Libra. It's possible to read Amazon Kindle books on a Kobo. It has the best on device and Calibre book management.
Swapping the screen itself isn't that hard. It's taking the reader apart and reassembling. Also there are possibly different factory settings per screen (marked on the ribbon) and unless the replacement is similar the contrast can be poor. The Libra has a good design of alloy chassis, so I don't think the screen breaking on it a big risk. The Forma is about €100 more here in Ireland, either in a local shop or online.
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