Here's a couple of mangos in more unusual sizes.
World of Ukes compared 4 Millar long neck sopranos. One of them is an all solid mango version.
World of Ukes also has a couple of Millar all solid mango jumbo tenors.
The ukulele looks like there are small scratches and dings on both sides. I would be too nervous to spend $750+ on an old uke with obvious signs of wear and tear from a thrift store without inspecting it in person.
The one negative Alex from SUS mentions about the Flight Fireball is that some customers say that the Fireball isn't loud enough when playing friends. Hence the reason why he developed the Flight Carabao. He wanted to combine the projection and volume from a spruce top and the sweet sound of mango.
The Enya EUC MS is a solid mahogany concert with satin finish, 36 mm nut, and radius fretboard. Baz did a review of it.
Granted, if you are looking at aNueNue, Kiwaya, Loprinzi, etc. then the budget Enya EUC MS for $110 might not be what you want.
You might try to contact the LA public library to see if they accept donations for their ukulele program. I don't know who runs the program, but Marc Horton is listed the original grant application. https://www.library.ca.gov/services/to-libraries/copycat-grants/uke-can-do-it/
Here's the full list of the ukes and guitars that are on sale. I think $175 for all solid mahogany C30, and $160 for solid cedar top C4 are also good deals.
Ukulele: AMM2, C30, C4 and Kona Sky
Guitar: M52, M60, M77, MTL Bob, MTL Clint
In the comments for that May 5 2022 video, Matty pointed out that L Luthier used Formosan Koa, and SUS said they were going to change their listing. Since L Luthier is a new brand to SUS, I'm assuming SUS just posted whatever specs L Luthier provided.
TUS has the Pepe Romero Baby Grand Project Guilele. Pepe took a baby grand piano built in early 1900s and turned them into nine ukes and two mini guitars. He built two guileles, one for his dad, and one that for sale ($6,500).
aNueNue T30 is all solid mahogany tenor for $280. The Hawaiian Dream series are built at a larger factory, while the AMM and bird series are built in a smaller factory, hence the difference in quality and price.
aNueNue USA has some T30, HMS is out of stock.
If you want a deeper sounding gcea tenor, you could try super tenors. Kanile'a Islander A-ST-4 laminate Acacia with a wider lower bout (under $200). Ohana BKT-70G tenor neck on baritone body, solid spruce top and laminate mahogany back and sides (under $300).
Alex from Southern Ukulele did a...