My Jazz was a 62 reg. also without DRL's.
My solution was to replace sidelight bulbs with brighter LED's, and drive with sidelights on in daytime. This also has the advantage that rear lights would be on as well , making you visible from the rear.
The disadvantage with retro - fitting DRL's is that legally they have to be in certain positions on the front of the car , and have to dim when main lights come on, so it can be tricky to find a place to fit them that looks OK and is legal.