The CMP version will be out in late May you may be able to get it from Raidentech in ElMonte Cal , they also distribute GSP and they are much better then GSP .
I have the VQ P40 , I think its the best P40 out there in its size .
Flaps, real tail airfoils, aluminum supports in the internal tail, free oleo struts , pilot, panel lines , rivits ect .
the absolute only negative is the somwhat off scheme in color .
Do a search Richare L did an online build and fly .
I think your engine is a little small but sell it and start over , the plane is worth it