Magnepan, Ohm, Spatial or ??

A couple people recommended the Vandersteen 2ce Sig II. I’ve had the 2ce and the 1ci in a small room similar to the OP, and I would highly recommend the 1ci over the 2.

I also had the Spatial M5 Sapphire for a few weeks and couldn’t stand them. They had none of the magic that the Vandy’s have. AND the speakers were damaged in shipping returning them to Spatial and Clayton put me on the hook for the costs. If it wasn't for the buyer protections on my Citibank credit card I would have been out the $2300 or whatever the costs were. Buyer beware.....

Saw several Vandersteen 3A for sale used??

I have listened to Spatial at LInear Tube Audio, and PAP at shows. 
Both share many similar characteristics. As mentioned, min distance from wall behind baffle. Clear defined bass and great sound staging. 
Generally speaking, the room needs much less treatment than with most boxes. Both designs are highly efficient. SET amps may apply also. PAP xo’s allow future customization via a screwdriver. Caps, resisters, etc, can be changed in minutes to match your hatch. 
PAP has just come out with a product in your price range. Enjoy. 

@bigwave

PAP?