I've got several 2-3 carried/visible trait summer meadow nephinis for sale in my Summer Meadows stable and hatchery. They're fertile if you're looking to breed some, and have decent stats (40s and 50s if I remember correctly?)
All are tested, all but one are adults.
Ping me if you'd like a (reasonably) lower price, though I think I have them fairly priced. :)
I am only on once or twice a day, so forgive me if I don't answer right away.
(Side note: I think it's pretty funny - it seem I'm the only one doing a 6-vis project for these guys... and I bred a 5-carried! Yay!)