This is an excellent JVC deck, which I owned and IIRC, was £249 here in the UK in 1978. It's built like a battleship, mechanically reliable and has great performance.
I was on the mad upgrade path then in my late teens, so sold it back to the dealer soon afterwards (for the same price BTW) and upgraded to the KD-85 which is basically the same deck, but with full servo control and then finally, the KD-A7, which I still have today and which works perfectly.