I can't name any figures regarding this special undertaking. But from my entrepreneurial experience I can say: whenever you need to make an investment to realise a project, don't limit yourself by financial worries. Especially since you are confident about it. Restriction (that is perceived as restriction) on the pecuniary side will also restrict and undermine your creativity.
Or you approach it from another ankle and see how much you can get out of a limited range of material. Say, how gorgeous can a fragrance be only made of 50 ingredients or so. Then it's more a challenge than a constraint.