Thank you all for your feedback.
Yes, the foundation is figuring out what to do and I am helping how I can with research as well.
A living maintenance stipend is technically acceptable for volunteers and is pretty standard for people coming from ASEAN countries on the volunteer visa.
I am farang and trying to cover my bases ;)
Note: the non-O volunteer visa functionally requires a work permit regardless of payment. Unless the regulations have recently changed: labor does not require a work permit for unpaid volunteering, however, PMJ requires a work permit for writing their recommendation letter to immigration to authorize a volunteer visa renewal of over 3 months...therefore labor provides WP's to volunteers out of consideration for making the volunteer's process with PMJ possible...(also, currently most Thai embassies are refusing new volunteer visas by requiring the letter from PMJ that depends on the WP before issuing the new visa...catch 22.)