Chili, first of all, you are measuring the gullet wrong. You measure inside not outside. Secondly, between having a saddler fix what is wrong with the saddle then having them trim it back, you are going to end up having a lot more money in a saddle then it is worth and will ultimately be unsellable.
Go to this thread and make the forms that you can take with you when you look for a saddle - or you can send them to a tack shop. It is a simple way to measure your horse and make a form to try on a saddle since it is usually impractical to bring your horse with you. http://www.horseforum.com/horse-tack...dle-fit-45868/
(Looking at the way you have the tape measure up to the saddle, your gullet may really be ~7" not 10")