Mattress topper for hip pain

I have osteoarthritis in my hips. We just got a new, firm Kluft mattress that seemed a lot more comfortable in the showroom. It really aggravates & puts pressure on my hotspots.

I am 5’4, 165 lbs, broad shoulders (for a woman), side sleeper, always hot so memory foam is out. I was thinking about a mattress topper from either Sleep on Latex or Latex Mattress factory but I had a couple of questions.

Dunlop or Talalay? I know Talalay is top of the line but would Dunlop work for me? I am trying not to have to pay a small fortune.

1” v 2” v 3”? No idea which to choose

Soft v medium?

Any suggestions?