need help in using a 10646 font with cp1251 text

[Ted Zlatanov <tzz@lifelogs.com>]

Hi,

My cp1251 setup is simply

(codepage-setup 1251)

If I open a cp1251 document, I don't have a suitable font for it, for
instance:

  character: З (07067, 3639, 0xe37)
    charset: cyrillic-iso8859-5 (Right-Hand Part of Latin/Cyrillic Alphabet (ISO/IEC 8859-5): ISO-IR-144)
 code point: 55
     syntax: word
   category: y:Cyrillic  
buffer code: 0x8C 0xB7
  file code: 0xC7 (encoded by coding system cp1251-unix)
       font: -- none --

But when I save the document in UTF-8 encoding and then read it back,
I get the characters displayed normally:

  character: З (01212067, 332855, 0x51437)
    charset: mule-unicode-0100-24ff (Unicode characters of the range U+0100..U+24FF.)
 code point: 40 55
     syntax: word
   category: y:Cyrillic  
buffer code: 0x9C 0xF4 0xA8 0xB7
  file code: 0xD0 0x97 (encoded by coding system mule-utf-8-unix)
       font: -Misc-Fixed-Medium-R-Normal--10-100-75-75-C-60-ISO10646-1


What can I do to get the 8859-5 charset obtained from the cp1251
encoding displayed as a UCS charset?  I don't want to install a 8859-5
font.

Thanks
Ted