That is a really bad distance you are right at the limit of the cheaper solution.
You can go 550 meters with multimode fiber. To go further you must go with singlemode fiber and singlemode optics (1310nm). This is assuming gigabit speeds.
If you can live with 100meg you can run 2km. on multimode fiber.
In either case you need small boxes that covert ethernet to optical connection. They cost about $100 each for the gig ones.
The ones you want for gigabit are called 1000lx (this is singlemode) The ones for 100m are called 100tx.
The fiber itself is the tough part. Since you will not have to tools to put cut or put ends on fiber you will need to have a custom cable built. There are special direct bury armored fiber but it tends to be expensive since they come in 6 strands and of course they are not terminated.
What you will likely have to do is run some form of tubing to protect the fiber. Then have someone build you a fiber with the proper ends. You can then VERY carefully pull the fiber through the conduit. This cable is not designed to be pulled though conduit so you must be extremely careful to not break it.
What you want to buy is Duplex Singlemode 8.3/125 Fiber Patch Cable with ends that match your media converters. This are commonly LC or SC.
If you go with 100m or if your distance is less you want Duplex Multimode 50/125 Fiber Patch Cable. Make sure you get 50 micron and not 62.5 micron.