Hello Orient_Express,
Firstly advise me that salehoo does not have a system
I'm sorry but I'd have to disagree with this statement, if even if I am employed by SaleHoo which might make me bias :)
Firstly we don't have a business/auction management software. We offer a directory and a Link hidden: Login to view not to mention great support for both!
I haven't used Treadeview so it wold be unfair to say anything about this software or application.
With the numbers you've given you might want to check out our Standard plan for SaleHoo Stores
Cheers!