Well 2~3000$ is not much for a EQ-mount for imaging. And I guess you would like to use it for visual to, right?
Here you have two links to platform makers. One is from
Osypowski. Some say they are the best. Don't forget to check the astrophotography section. The other company is
Johnsonian Designs. Their models are cheaper then those of Osypowsky.
Another option is buildinf one
.