This is a repeat of an old answer but surely a share of gate money, after expences, not including players wages, say 30% going to the away team would be a good first step. This would be a huge financial benifit to the smaller clubs. With the extra income smaller clubs would be more able to sign better players, generate improved performances and make the SPL more attractive. After a time income could be sufficient to generate extra monies for the lower divisions.
More atractive SPL generates more TV income, bigger crowds and a still more atractive competition. I seem to remember that the old 1st Division had an arangement similar to this, the competition whilst still skewed was closer and crowds were bigger.
I know that Scottish Football is unlikely to generate the crowd sizes of years past but somthing needs to be done to make it more atractive for the likes of SKY and ESPN. It could be that the game, as we know it, will wither in Scotland untill we are left with only part time football at best.