Not really sure the benefit of a tablet without wireless, you will have to get a lot of Ethernet cables, but okay.
We have looked into some Dell Latitude 8 tablets for two faculty and went ahead and got them. They have to be Windows 8 Professional in order to join your domain. The other editions will not join domains. Dell had a fairly good deal where you got $200 off the tablet with purchase of a PC which we did. We do all our computer purchases through them anyway.
I look forward to them coming and more testing to be done, but it should work fairly simple. Obviously check the tablets you are purchasing have an Ethernet port, otherwise you will be getting adapters for the tablets. Just strange your HT would want them, but not look into wireless first.