Colorex, what kind of tx and rx do you have? Are you sure it will work? Is the crystal available?
The RTF comes with a 2.4 Ghz transmitter and receiver.
As for power supply for the cheap battery charger, you can use ANY AC wall transfomer that puts out 12 volts. Just cut off the alligator clamps from the battery charger, cut the wires between the wall plug and terminal end of the AC plug, splice together, and you have an AC power source.
I myself would go with the RTF version for your first plane. I don't normally recommend it, but Chad and Josh worked with HobbyKing on this, with the beginner in mind. You might notice this is the first, and as far as I know, only RTF plane that HK has in stock.
It comes with EVERYTHING. As you earn money, you can look for accessories to expand your flying experience. But for a plane to get you in the air, and get your skills ready for the next level of flight, this package is very hard to beat.
The only downside to it that I can see, is that it isn't in stock.
Don't rush and get something you won't be happy with. You weren't expecting to have a plane in the near future, no sense rushing into this, and getting something you won't be happy with. Trust me, I keep learning this the hard way.