RE: Need advice for a RC beginner...
You have a lot of good stuff there.
That Kadet Senior would be my number one choice for a trainer (with an instructor from the local club) at least for starters. You can add ailerons to it later if you want. The yellow and white one looks like a good 4 channel trainer as well.
Right Flyers are great and a bit more aerobatic.
As others have said the local club should be your first stop. An experienced fliers can look over your gear and used engines and see what you can use or still need.