James, be sure to degrease these parts thoroughly, and try cyanoacrolate (hot stuff, crazy glue) type of an adhesive sparingly, accelerator helps too.
Be patient, Trumpy will answer our requests, it's just going to take a while. I am sure the next release will be the Porsche turret for our KT (I will just get one of those!) as they get a little more bank for the bucks spent on the mold tooling.
I'll wait till the shopping and gift return madness subsides and hit the craft store next week to search for "stuff" to use in plumbing the beast and fiddly bits to use in other areas throughout the tank. Always surprising to find craft stuff that looks like something we can use for a handle, hole, line etc in all types of scale modeling.