You could look at the used market for customs in that $$ range by Southard, Terzoula, Rogers, Anso, Lightfoot, Mayo, Laconico, Savidan, Elishewitz, Turpin, Ochs, or Lambert.
For new customs $1,500 and under I'd suggest looking at Gedraitus, Thorburn, VanHeerden, Challenor, J Clark, Zinker, Guthrie, Pena, Cheburkov, Rogovets, Nadeau, Tighe, or Diskin.
I've found I get the most value out of customs in the $750 - $1200 range made by lesser known individuals. The makers portion of the exchange on this forum is a superb resource for these pieces. Of note, I'd recommend Tobin Smith, Matt Bailey, Alan Davis, Petr Weingartner (
wajgy
), and Cyril Kalisz.
Happy buyin