hi I had the same issue (for repainting) last year and to be honest its hard!
if you decide to go with a cradle decide (after talking to the builder) if the flanges will take it and if they can give them a large contact area and put a couple of small supports under the hull which will save them. Its also worth considering .
taking the trailer out and jacking it up then using a block thru the trunk holes on the transom and on the bow hook.
I was not brave enough to the boat be supported on the 3 points so it went stern first then lowered then bow up.
we also the year before simply dropped a 585 ribcraft off its trailer and ten jacked it a fraction and that was excellent as we could roll her over side to side easily (one person). we did each side separately.
that with hindight was the easiest and best solution.
ie lowest risk of damage.
getting her off is best onto a carpet and when she goes back on protect the hull at the transom cos the blocks drop away as the boat comes forward.
turned out well and sold well.