All the non ra/ex ones have the same size/shape/element available based on slot and coloration.
The synth ones share the same of everything with themselves as well. Scroll down on
http://wiki.ffxiclopedia.org/wiki/Category:Synergy/Item_Etching/All_Recipes.
Also you have 75 rdm. You shouldn't pay for aptants or any pigment outside of ebur as you can easily solo them.
Myself I just bought the base ebon stuff since I would've had to find a crafting anyways to make it and taking the time to farm that and a crafter was easier to do that. Aptant was super easy to do once I got used to the whole kiting a mob that mostly just melees and always runs as fast as I do. Ebur pigment isn't soloable but I've seen the vampyre killed by 4 rdm/nins in about 30-40 min several times and bought a couple for 200k each.