I have read a posts where the PM BXA stuff was liked by a beginner but hearing its not by a more savvy person carries a bit more weight.
Here goes...
If Matt says the BXA is the right size for the
1440 your lathe, then you can bet real money it is right. My 1440 has a BXA on it and it works fine. And before you worry about who is savvy here, you should know I have over 45 years machining experience. not just in duration but tens of thousands of hours over that time using both lathes and mills. The BXA system is so simple that you should *not* be afraid. Not every horror story you hear is true.
So here goes: I have BXA piston from offshore. I have BXA wedge *real* Aloris. I have wedge BXA from offshore. (you see I have 3 lathes,, all outfitted with every tool post style I can afford. Very long story). Fit and finish - the 900$ (Canadian) Aloris wins. For *functionality* they all work fine. My 1440 has a 3HP motor on it and I can take a big chip with any of the holders. No problem parting with any of them.
Your tool post should not be on your worry list. What you should be worrying about is that your carrier might havve mistreated it in transit. Take a LOT of photos - of the crate, and every step of the unboxing, including video. This is your protection and evidence if anything has gone wrong. And if it is fine, - good memories.
I have never had a tool post I couldn't do good work with. In my shop I have Dickson, Aloris, generic QCTP (Aloris style), 4-way in 2 designs, and American rocker. so I speak from experience. Now if you buy very cheap tool holders that don't fit your tool post, well, that's not on Matt.
Your new lathe is a big investment, of course. Enjoy the anticipation.