I wanted to share some photo reference of 1/4 dream valley dolls I tested as hybrids with fairyline (the dream valley ones don't have a series name to my knowledge, they're the kind made similarly to fairyline, that are strung in two halves including Achelous, Safina, Phoenix, and Uncia. I think the deer dolls may be this style as well, but I'm not sure as I don't own them). They actually fit somewhat closely and might not take modding depending on your personal preference. Dream Valley parts are respectively Achelous' upper half in white, and Fairyland's Fairyline mermaid tail from Akis in clear blue. Gapping is worse in the front than the back, but could be covered up with a scarf, or modded by more adventurous artists.