Turns out I just used this sheet, double sided, then cut in half to have two GP sheets per member. They fit well in our libers, but probably not so great in a larger binder.
There is a landscape version of the Gloria Patri tones on the Institute of Christ the King's Sacred Music Resources page directly linked here. This version is supposed to be printed on both sides of a letter-size sheet, then cut in half. They also have a re-typeset replacement insert for the Liber Usualis here.
I've converted the landscape version to protrait (see attached).
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