GPS? Weather Radar?
We had NDB us lot did, that be yer all purpose instrument for negotiating storms, tell young people that today and they won't believe ya!
You had it easy!
The only instruments I had were my eyes and a second hand watch that I found at a dump in the outskirts of lae....
A let down in IMC was flown by dangling a wire with a lead sinker underneath. Once it snapped, you knew to descend no further!