I agree about wanting to stay away from solvents. I too use purple power cleaner and the orange citrus stuff. They work ok but not 100 percent. I have used the low voc type of brake cleaner in a spray can to degrease, it works good but goes quick, also I have good results with Duplicolor degreaser/wax remover in a spray can, probably one of the best products I have found so far in my restore. Good Luck.
Chris.