I don't see why we cant simply use the freakn 'S'! S200,000. Leave the line out. Or take the existing logo and along the diagonal shade change, draw the line there. An S with a diagonal line thru it.
Or, the line can be straight/vertical with a diagonal S.
I really like this idea of an S with a line through the middle horizontally.
how does this look or maybe someone can do a horizontal line?
http://i1382.photobucket.com/albums/ah263/obitwice42/green-s-hi_zpsf9c554cf.jpg