Over on the Trombone Chat Forum, one of the regular vendors, who goes by the handle of Greenbean, has a Conn 19I for sale for a reasonable price. I've dealt with him and he's a reliable seller. He always has horns for sale and is a trusted vendor on that forum.

The Conn 19I is a clone of the King 2280 and this one in lacquer looks very nice.

Here's the link: