Agreed with Ladobe,
Before you spend $$ on a foxpro, you might try a closed reed on a few outings to see if this is something that you enjoy doing.
I can remember wanting a Johnny Stewart elect call back in the early 70's so bad that i could taste it but it was not to be afforded, by the time I could afford one, I was well versed in the close reeds and never looked back. I did put together a couple homemades with the Radio Shack mini amp (told elsewhere on this forum) and they worked well. It did not take my Son & Sil long to commander both units.
I did not get into the open reed calls until 86' or so compliments of Bill Austin. They take more practice but will do everything Ladobe was saying.