Take the time and do it yourself. Buy a book, buy a video, or search the web for methods. If you do it yourself that bond you'll develop with the dog will pay in the end.
1. If using a training collar, start the conditioning now. Less than an hour and you'll have that learned.
2. Teach Here and Heel in the yard. Whoa can come later and takes a little longer to learn. Control of the dog
3. Preserves are open until March 31st so you can get birds and get the dog on birds and gun condition at the same time. Sometimes running the dog with a veteran dog might help. Use a checkcord and have a buddy do the shooting. The main advantage a trainer has is access to birds.
4. Fetch you should already be doing that and shouldn't have any issues getting a gsp to retrieve. Force fetch training is usually a separate session with a trainer.
I'm in KC, if you need any books, wings, or help hit me up maybe I can help more.