Happy, happy, joy, joy !!
I cannot help it, I simply love Coverdale/Cranmerian style Liturgical English.........
I have found a link to a downloadable Slavonic/Traditional English psalter which contains the Kathismata prayers :-)
It is quite a big download, 2.89 Mb, and the parish no longer produces a hard copy for sale, so it may well disappear from the site at some point. It may be wise to download it now, to be on the safe side.