I had one place, well early on my journey in bonsai...who ended up taking the tree to the shipping company to package and ship. They didn't handle shipping on the nursery end. But...unless they offer...which they did. That's putting a lot on them....The tree came bagged and no air flow...with fungal issues...and it died. I didn't blame the nursery...They told me up front...they don't ship. I chose to use a third party...and that was on me.
I'll say...Shout out to Jason Schley who is my current go to man...and he ships...and his pricing is fare. He's also on Facebook...that said. He has far more material than is listed on that site of his I'm sharing. I'll have something characteristic/style I'm wanting...I shoot him a ballpark price I wish to spend...and he sends me photos of said trees that fit the bill. I then choose from them. That has worked amazingly for me.
schleysbonsai.com