Hi Hotglove, if you are getting the Bella more scale like then the seats without lockers underneath are wrong. They should be boxed in and the various parts of the seats would then be raised to give access to ready use lockers. These are for ropes and fenders. If you have the risidual wood from the kit there is enough spare deck laminated wood sheet to make new seats, looks nice and matches the deck well.
Fenders are tied when in use to a cleat or more usually to a stanchion wire with a half hitch knot. If you fit stanchions then allow for them to be about 27 inches high full size, you have to be able to easily put a leg over for mooring up / getting on board. Typical use is to straddle them for support and hang onto a mast shroud.
There are a lot of winches missing and on either side of the door you would look to find a bag to hold the spare rope sheets from the sails. These would match the cushions for the seats, every small yacht has removable waterproof cushions. Also the floor would usually have duckboards raising your feet a couple of inches above the floor to avoid getting wet feet.
Navigation lights are usually up aloft and a single all purpose light does the job.
The ready made figures are expensive I only occasionally fit, they are difficult to find. Most are too bulky. Think of a bloke wearing a waterproof jacket with a small life vest over it. Do not put him in and old fashioned Sou'wester hat. A cap with a small peak bright colour and providing shade for the ears, they get sunburn.
The rudder tiller may be fixed on your boat, I would suggest any new builds put the rudder under the tiller, can't think why it is where it is, it is easy enough to fit a servo in the rear compartment and make a hatch. While doing helm duty the helmsman will have sight of navigational instruments. Namely Compass, Apparent wind direction, Speed in knots possibly from dragging a log line or maybe one fitted in the hull. More likely today actual speed from a satelite. For real detail each will have a hanging waterproof cover when in use.
Most yachts would have an anchor (Danforth) probably in a hatch at the bow but make sure there are good cleats up there as well, often there is a Samson Post up in the bow, this is a strong point on the yacht where you could take a tow if necessary.
Personally I would say do not fit an outboard, I have sailed model yachts for many years and logically, would you bother going out to sail if there was no wind? If you go aground an outboard will not help.
I hope to be full size sailing with my son in Feb/March 2019, we will probably sail down to Sydney and stay at the yacht club (which serves wonderful food!!!) and get to sail under the Bridge and into the National Park area which is lovely and quiet.
At this very moment this is where he is, waiting to line up and moor in Sydney Harbour to watch the New Year fireworks display. They are 11 hours ahead of us.
My Bella is a completely different sail configuration, I am in Hertfordshire and if you ever come this way let me know and we could get a sail in. Likewise Black Park near Slough.
Kind regards,
Roy