Westone as JohnBuckner stated, it the radio is AM, while it will work, I suggest you simply throw it out. One of those Futaba systems did not have buddy box capability. I'm sure JB remembers. Of course if you don't need it then you don't need it.

I seriously doubt the Nicads will ever come up to par if they have long been without charge.

Now at either Walmart or Radio Shack, you can get great deals on NMH batteries. I just put together some for both a transmitter and a new ignition battery for a gas-burner. 1500 to 2500 mah NMH batteries can be had cheap as compared to hobby supply and mag. ads.
I am flying some models now using RS plastic cell holders using the nylon tie-straps to keep the contacts tight without solder. WORKS as long as the unit is well padded.
At RS and or WM, you can find any number of fine chargers, that with some soldering for wires, etc., you can have very flexible chargers. Three come to mind:
1.) Was originally a car charger, but where the cells go in, I soldered a lead to fit a standard switch male bat. charging plug. It can charge up to 8 cells, at your selected voltage, 1.5 to 9.6, at a 5 hour rate. It figures the need with a couple switch settings. Cost me $7.00 at RS. Comes in handy ever so often.
2.) Another one is selectable 1.5 to 12 volts. Constant 300 mah. Has a variety of plugs. There is one to fit any of my transmitters, The plug receptacle pins can be rotated 180* before attaching the plug so you can change the polarity to fit, like JR Vice Futaba Tmttrs. Cost was about $15, but oh so versatile.
3.) This one has 1.2 to 12 volts selectable. Constant 100 mah output. I have soldered both a plug for an airplane and a transmitter onto the output wire. Makes for a great trickle charger when plugged into either for a long period of time, when the batteries of 1500 to 2500 mah are already charged and you want to maybe keep that for a later flying date.

Of course you can find numerous chargers with 100-300 mah output at 6 to 9 volts. These will charge receiver packs just fine. Now that 2000 mah +/- NMH batts are so common and relatively inexpensive, and easy to manage, I have little need for ever using anything different.

Lots of good deals out there. As far as support equipment, the most is NOT found in a hobby shop.