Hi there!
Thanks for reaching out. I will try to help with your question.
There’s not an easy way to add the ticket form outside of the single events template, as it is added via action hooks and relies on the loop variables being defined.
You could create a custom single-event template that contains a conditional to do one thing if the post you want to target, otherwise something else. For the conditional, you could use the “$event_id” variable and check it against the id of the specific event you want to target.
The template you would want to work with is the-events-calendar/src/views/single-event.php. You can copy this into your child theme in your-theme]/tribe-events/single-event.php and add your modifications.
For more information on working with custom event templates, see our Themer’s Guide.
Hope that helps! Let me know if you have any further questions.
Thanks,
Sky