I have a piece in which I etched, plated, then domed, then did it
the other way, dome (or raise, shape, forge, whatever), plated areas,
then etched. I must say that etching then plating last has its
no change in the etch design on the one that I shaped completely
before etching & plating.
less waste of plating materials in the final project, as I had
also done some piercing work, and what was cut away did not take up
the plating solution, i.e. what I removed in piercing on the second
one did not have wasted plating.
I think it will be up to you in the long run, but I found that doing
ALL of the work prior to my etching was the best way to go.