You are adventurous! These are expensive stuff you are messing with
Saffron is not that expensive, considering how little you usually have to use, especially in your case.
White lotus has a wonderful saffron CO2 extract and sells a .05 oz sample for about 10 bucks. That size would probably be enough for your needs. You could alternatively use safraleine, but I guess you are trying to keep it all natural.
I don't think the attars you have are all natural. In fact I'm sure they are not.
Mix in small batches, take notes and enjoy what you are doing.