I know you are loving your new air plane... great have fun.
I want to tell you that many airplanes are similar and practice with any one of them will help you prepare for flying the real thing. I wish RF had every aircraft out there available for you to use. The fact of the matter is, that is not going to happen because of the rate new models are produced. You should be looking for similar warbirds by wing span and weight. Getting good at flying one of them will help in your quest.
Keep in mind - the computer model is the interpretation of one modeler of how it should fly. Take two exact copies of the same model and give them to two different modelers and you will get different flying models. So even if you have the exact model on RF7 it will be different than what you will see and feel at the flying field.
Good luck and I hope someone picks up your project.