Answer
Before choosing or arranging Khao Lak itinerary planning, work backwards from the experience you want and the problems you need to avoid. The useful comparison points are base location, beach time, island or national-park days, Takua Pa, markets, travel time, rest days, weather alternatives, family pace and budget.
Trying to move every day usually wastes time because the coast is spread out. One main accommodation base with carefully chosen day trips is often more relaxing.
A dependable provider or organiser will answer plainly and will not hide an important limitation behind vague marketing language. If a safety, legal, medical or access question is involved, use a qualified source rather than an assumption.
Use Hotels Thailand Online for accommodation comparison and the specialist directories for golf or property only when those interests are relevant.