I removed the screws holding the back panel on, and then removed the internal parts by removing more screws, unattaching the tuning needle, undoing the speaker, and taking the knobs of the dials on the front.
Our internal parts, the actual radio, don't work, but since it's very old it'll be destined for either a car boot sale or freecycle as I'm sure someone will want it.
I kept the knobs for the front dials because I will put them back on the front to make it look more genuine.
I had planned to undo the rotary switches from the amp and wire them up to the front, but after doing this, I noticed the sound quality dropped significantly, due to interference I would guess.
The next step was to vacuum out 50 years of dust from the radio.