Got the Dragon car from Amazon and made a mount for it tonight to fix up the area that has the Dragon tank on the Prem/LE, but just a printed plastic on the Pros. Ended up working out great. The Dragon tank at the correct scale is only $20 here:
https://www.amazon.com/dp/B07MVLD68R
And it's exactly the right size for that area on the Pros. The only thing that's a little off is if you want it to follow the edges of the plastic it mounts to, it's very slightly crooked. It can be made straight, but then it's hanging over one side a slight amount.
There's a peg that mounts the car to the diorama terrain it comes on that's perfect to secure it to a bracket. And the tiny screw that holds it to the ground in the display can be reused to hold it to the bracket, although I don't even think that's necessary as it sits inside the square slot on the bracket pretty securely. FYI the tiny screw is a triangle security bit (the kind like for Nintendo hardware) for some weird reason. NO IDEA why they didn't make it a plain philips.
I don't want to get into selling these dragon tanks with the mounts. There's already lit Dragon Tank mods, etc coming out or already available. But I will make the bracket available in the pinmonk store for $7 so you have an easy way to mount it if you want to pick up the Amazon one and don't want to mess with crafting a mount that looks halfway decent.
$20 (at Amazon) Dragon Tank, mounted on a Pro:
dragon_pro_install (resized).jpg
dragon_pro_install2 (resized).jpg
$7 bracket it mounts to:
dragon_bracket2 (resized).jpg