Mulling over things, how about this setup :
10 r n b q k q b n r
9 r n b q q q b n r
8 p p p p p p p p p
7 - - - - - - - - -
6 - - - - - - - - -
5 - - - - - - - - -
4 - - - - - - - - -
3 P P P P P P P P P
2 R N B Q Q Q B N R
1 R N B Q K Q B N R
a b c d e f g h i
or this :
10 r b b q k q b b r
9 r n n q q q n n r
8 p p p p p p p p p
7 - - - - - - - - -
6 - - - - - - - - -
5 - - - - - - - - -
4 - - - - - - - - -
3 P P P P P P P P P
2 R N N Q Q Q N N R
1 R B B Q K Q B B R
a b c d e f g h i
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If you don't like the five Queens, files d and f could be just removed.