I may be too late but maybe you noticed that all (well maybe not ALL but Carol sure does) the Stuarts from this unit has the antenna moved from the turret rear to the turret roof so it doesn't have the serach light on anymore.
I mean like this :

(ecxuse me for posting a pic of my own model but it's the only one at hand)
Also, if you want to build Carol there is an issue with the rear of the tank.
This is less obvious and more time consuming to fix.
You want what I called "mark II" with the deflector but without the towing pintle.