How to create Engram for Russian?

[binarybottle]

I received an email last week:

[Russian has] 33 letters. So I think the only option is to use Home and Page Up for ъ and ь (these keys used for typing in Japanese layout for Kinesis keyboard). I made preliminary version of the layout (for ergonomic orthonormal keyboard like new Kinesis Advantage360): [ № = − + / ’ ° § % * ]
Ф 1 2 3 4 5 6 7 8 9 0 Э

    БУКЛ  –(  —) ДГЗХЦ
    ЫВАЕ  ,;    .:   НОСТЁ
    ЙЧИЯ  -_  ?!   РМПЖ
    Ш                         ЩЮ
              Ъ@  Ь#
               «„     »“

I made some changes in the typographical symbols scheme according to Russian typographic tradition. Letter arranged by frequency, including bigrams and trigrams. But I am still not sure if it is good or not.