Purchasing from LP Gear

AR lists that model as discontinued. But there is always the pipeline that lags in supply.  The other models you listed are the updated models. 
Have you listened to the ART9?

This series is intriguing, and from a major manufacturer. I may try the XA and/or XI. 
I’m an old Signet TK10ML user, and a spare styli waiting to install  soon. 
However, a new phono-pre is due here soon, so may wait on that. 
To the OP, I have no experience as yet. 

+1 to. tomic601

Nobody wants to deal with international shipping and receiving, even for a small box.

There’s no phone number to talk to a human being.There’s also no way to click on an item to put it in your cart.I’m not fond of a company like that.