It'll fly... did you re enforced the boom/tail with a piece of wood, like a dowl. ???
The plastic might colaps and it might not.

those sticks, stick type models only has a little carbon fiber rod for a boom anyway.

Other than that..it should fly. But it'll be touchy or very agile
becuase you have a short tail or boom.

you can use a couple of yard sticks for a fuselage.

The rod is secure through the butt of the handle. A couple of tie wraps or just tape it, if you think it might flex
a couple of tie wraps secure the rods of the duraplane's to the tail boom and that's about it.

He's using one those flex rod.

You use duck tape to mount the servos on the duraplane.lol