PM box is full
Clyde,
(I was sending this via PM but I got a message that your box is full.)
Do consider a few bigger ticket items that allow you wider profit margin. I know full tree are pain to pack, ship and is expensive but it might be worth the effort. Bigger pre-bonsai is also good...even if they are just stumps (easier to pack & ship) if you can source them cheap.
What I would do (if I were you) is post some of my personal collection and replace them with better stock if they sell. Rinse and repeat.
If they don't sell...you lost nothing, they just get better in time.
Good luck and I will be watching your eBay postings.
Dario