Ihave more engines than airframes.
But you will be happy to know I installed a Thunder Tiger GP25 on my Kadet Jr just last night. Ihad an Irvine 25(totally sweet by the way) on it for break in and it is running outstandingly so now it will go on the shelf till Ibuild my Kobra.
The TT25 is brand new and will get broke in and later slated for another airframe.