I'm off sea trouting tomorrow for the very first time

I've, got everything but sea trout experience packed in my old x trail

So my big question is, should I use a dropper or not, I have got 20 years fly fishing experience behind me but I have never night fished, the river is not a noted sea trout river but they are there and there are not too many bank side obstructions.
I'm planning on using a size 8ls fly on the point, so if the answer is yes to using a dropper then how far from the point and what size hook ? Many thanks Paul