You might rethink your budget situation too. The cheapest RC jet you can get is going to cost $5000. Add another 2000-3000 to that if you want it to look and fly like a scale warplane. To get there, you'll need to work through 3-4 regular RC planes to build the flying skills and burn lots of fuel in the process. Then you have to get a turbine waiver to be able to operate a jet legally.
Not saying all of this to discourage you. It's just important to know how big a project it is to go from beginner pilot to flying RC jets is.