First, your dress is beautiful! You will make a lovely bride...
Second, if you live in a remote area, never underestimate the power of the internet! I got tons of stuff for my wedding online: my veil, a tiara, wedding favors, etc.
Just lots and lots of stuff.
The jewelry will be a really personal decision. If you don't want to, don't do it. But in the end if you decide you'd like to, run with it. Ultimately, you are the bride so do what makes you feel good
My necklace actually ended up being my "something borrowed." It was my mother's pearl necklace. I wanted to keep it really simple.