The AW Edge is too small to 3D with a 125.
You really would want to buy a plane with 950 sq inches and up.
I just bought a TLT aviation Sukhoi ($275 shipped),I bet it would fly real well on a 125.
I run a YS 140 in it,but its really not necessary.
If you are new to 3D it is important to fly a plane that will work with you,and let you advance.
Stuffing a big motor into a 60 size plane is not ideal.
3D is achieved by having a lightly loaded wing and airframe that is agile,and that has a motor with good pull and response.