Ohh, holidays!
I would look at this the other way around..is there somewhere on your body...I am thinking upper bum cheek, the bit you don't sit on...that you could put the infusion set you are happy with?
Due to the aftereffects of 2 C scetions, I don't wear bikinis..certainly not the itsy bitsy type anyway, but if your bikini is not too brief i would look for somewhere else to put the cannula.
Steel canuala are very popular, and many prefer them...not painful. I am not famiiar with the ones you mentioned though.