The Kadet is perfect for a trainer.

As for the radio, look at the back. If there is a Gold Sticker on it, it should be ok (the sticker is about 1" long x 3/8" high). If not, you'll have to replace it. (In 1991 the FCC required all radios to broadcast a narrower frequency band. Some older radios were converted, all that were converted or built to the new narrow bands carry a gold sticker on the back)