Pine Phone cases and accessories

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I would be happy if the following accessories would exists:
1) Some type of keyboard, preferably one which can be attached in place of the back cover or a case which can also hold the phone and a keyboard and not really bigger in size
2) A screen protector which is designed specifically for this phone
3) A case - for me, preferably a Silicone back plus screen protector mentioned above

A slim clamshell keyboard case would be an ideal 3-in-1 solution.