Compared to the other eink reader prices you cited, a Glo HD for $189 is a terrific deal. It's a great ereader and won't be available much longer, so if you want eink, you should jump on it. It has the advantage of requiring no alteration in your current set-up, also.
You do sound rather breaky. If you don't mind reason on a tablet, fixing the iPad Mini is your most-effective choice and it'll be sturdier than eink (even though you broke that, too.
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