Yea, I have not glued any bits to it yet

Looking at the instructions the DF fits perfectly in there.....so it is meant for it.

But....the turbine also fits like a glove in there


Which retracts did you use in yours ?
The wires struts that come with the kit have no curled spring on them to take the force of a landing..... did yuo use them, or some other struts ?