I don`t know if this is helpfull right now as you perhaps are looking for other suppliers of Lavender eo than Now. But I can at least say that I have some experience with the Now foods lavender eo in CP soap. Mind you, that is many years ago, (about 9 or 10 years ago) so I don`t know if there has been a change in quality since then!?
But if it is the same as when I used it, then it was actually a good enough oil. And it was real lavender.
Perhaps it wasn`t like a French, high altitude oil, or Bulgarian lavender type, but not to shabby either! I bought many bottles over the years, as I shopped at Iherb at that time because I could not find very reputable suppliers that shipped to Norway and had what I needed. So Now foods oils was the thing I used.
The oil was very stable and had no great variations between bottles, soaped well, gave me no dos, and worked just fine. It may have been a 40/42 type, I don`t know as the bottle did not say. But I liked it for my purpose, and had no issues with it.
If you have some available to you, or can get it, and it is for charity and you don`t have the oportunity to splurge on a more expensive oil, I have no qualms about reccomending it. But that is under the assumption that it is the same quality as when I bought it.