@Doolou
Questions are always welcome!
"Type R" means
race version and is inspired by
Honda's Civic Type R car. The build plan is of course the same. To be here on the safe side, you should use a 30 A ESC for 4S, then you still have reserve at full thrust. And if you use a 3-blade propeller, then the load is still somewhat larger.
For the 7mm carbon rod you only have to remove some of the foam, that should not be a problem. It is best to glue it in front of the wing spar. If you put the servos further back, you need more weight in the nose for the perfect center of gravity. It's best to build the model with all the electronics and weigh out the CG to find the perfect battery weight.
Have fun!