HI William,
I am well experienced in eBay listing, have used a few tools to list products.
Those includes: eBay Turbo Lister, inkFrog, Auctiva, Vendio, eComDash, SellerCloud.
I have also used Terapeak for one client too. Being a fast learner it won't take me much time to learn the tools if your's are new and I will not charge for the hours I need to learn. And, I can dedicate more than 40hrs a week.
Feel free to discuss further.
Regards,
Imtiaze