You'll run out of scarlet rubies / elemental fires at a resonable price if you make 30 cardinals at one time every 20 hours .... but I suppose if you make like 10 of the main 3 you will probably be ok but with you buying up the materials at such a rate it cannot help to raise their price. Still Alk/Tail is the way to go.

My cloths arn't selling so hots (well they would fly out at 75g each though) so Im making things with them have a bejewed wizards bracer out at around 3K, if it dont sell so Ill use it myself lol ...