Seems you can't give them away, on Ebay, for just £15, no takers.
Here is a posting of Eminent 1500 from Mike.

Do I spy with my little eye ................................... real drawbars?

No drawbars on a 1500. The 2000 Grand Theatre had them, and some of the Eminent and Solina range had sliders that effectively functioned as drawbars, if rather fiddly to operate on the fly.