@two-saabs congrats on the order from a fellow 'Zürcher'.
I'd agree with the others that LHD non-swivel will be fine as we also find we mostly swivel the RH seat and leave the LH facing front.
Also, electric hookup is a must, even with the Beach as you'll no doubt get a fridge too. I recommend a Dolmetic (look at Conrad or Galaxus websites).
We also have the heated front windscreen, but we've always added this to all our cars here if possible.
The manual roof is fine for me, but my wife would struggle so I can see why you went for the electric.
OK, now to leave for a night in Appenzell...