Magnepan, Ohm, Spatial or ??

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?

With your budget, you could consider something like my own setup, which is a pair of Ohms augmented with a pair of subs.  I am a bit of a bass freak, and my Vandy subs will bust your budget unless you find them used, but a combo of the Ohm 1000s with a pair of subs would be my choice.  I am beyond thrilled with my Ohm 2000s after 10 years, and I have no desire to change speakers.