Compile your pictures and specifications as well as trade directory into an organized, portable file that is easy to add into as your project progresses. Make a checklist/grid for each area and item with a rating scale. For example, Sleeping Quarters (bunk bed) should be comfortable (10 rating), with accessible storage (9 rating), among other factors.
Rate how easy it is to maintain and repair your interior. There should be enough available supplies/suppliers in your boat yard; otherwise, finding replacements can hinder frequent use of your boat. Alternative materials simulate hardwood but do not require as much care; your time should not be spent maintaining, cleaning and repairing as much as you should be out enjoying yourself on the water.
Consider new materials that are environmentally friendly and offer additional benefits such as better fireproofing, being lightweight, cost-efficient and recyclable, and have better isolation capacities for sound and heating. Find them as wall systems, halon-free foils and concrete counter tops that last far longer than stone counter tops.
Decide on what devices you need and their desired level of sophistication. An LCD TV can stay at one viewing angle mounted on the wall; alternatively, it can be mounted on a swivel arm with a wider angle range. Cameras have similar considerations.
Maximize the functionality of each nook and cranny. Think about mounted drink holders for the steering wheel and any space available; upper and lower berths for sleeping quarters; seating that doubles as storage; and wall panels that reduce vibration and heat.
Consider your lifestyle as a boat owner. The tanning deck is glamorous but might have minimal use if you are more of a big-game fisherman. Your tackle might best be stored on the deck, but someone else's boat might prioritize pillows and towels for this area.
Ensure that all installations comply with safety standards: structural fire protection approved by Lloyds and MCA/class requirements, a sprinkler system, IMO/SOLAS-approved wall panel systems, doors, and ceilings; minimum 7.5-foot headroom on all areas, enough handrails and anti-skid deck.