What original documents are needed for volunteer visas in Thailand, and are there different requirements for Vientiane and Savanakhet?

The inquiry concerns the necessity of original documents for volunteer visa applications in Thailand, specifically questioning which specific documents must be submitted as originals. The poster expresses skepticism about the practicality of submitting original copies for certain documents like foundation registration and ID card. Additionally, they seek to clarify whether the requirement for original documents is unique to Vientiane or also applicable in Savanakhet.