Need ideas for a rustic/country wedding!

Hi everyone! I am looking for cheap ways to do my wedding. My fiance and I are still in the process of figuring out a lot of stuff (we just got engaged 2 days ago.) We are trying to figure out whose attending, what colors we are going to do for it being a rustic wedding, and a lot of other stuff. We are getting married at my fiances' best friends'barn and we have a few things planned out. We are trying to figure out how to manage everything under $10,000 because my fiance is going to the military hopefully right after our honeymoon and everything. We are also trying to figure out the decor styles so if y´all have any ideas for me about anything that would be great, Thanks!