I would go with the alpha. Thats what i learned on and i love it. Then after i learned i did what you want to do, i got the P-51 mustang pts. I also like that a lot. I got the RTF and had no problems at all. The most important thing i can say is get and instuctor!!! They help a lot. I would stay on the alpha for a while even after you solo to get that extra practice. The mustang is a lot different.

Good luck and have fun

Chris