Hi and welcome to the madhouse!
some observations, about your engine. If you have a model shop nearby, take it to them for suggestions for fuel and glow plug options. Probably 10% nitro mix is a good starting point. Dont buy too much initially, as you may have to change the mix depending on how the engine runs.
To start the motor, you will need a battery operated starter motor, with a belt link around the engine pulley.
Tank, if its a pressurised tank there will be 3 connection, 1 for filling, one to the carb and the third connects to the exhaust for pressure. The supply to the engine should have a klunk fitted inside the tank. This is just a brass wight on the end of the tube to ensure suction is maintained by keeping the tube end at the bottom of the tank.
Fuel line - silicone fuel line from model shops - make sure its the right stuff to protect against the fuel.
I think you will need the water cooling as the air flow in a boat is restricted.
Testing. Make sure when you test the engine out of the boat that it is secure. I speak from experience here, I had a .46 engine running clamped in a workmate with an aero prop on. The engine came out and took off the tip of a finger without missing a beat!
Get or make a proper test mount so that the engine is bolted down, dont rely on clamping. I only use ic in planes, but to run a marine nitro on test I think it should have a little load on it to make it work and avoid over revving. Run a connecting wire from the throttle to behind the engine so you can adjust speed. Fix the wire so it has some resistance to movement so vibrations dont work the throttle open.
Above all, be carefull, they pack a surprising amount of power for a small engine.
Having said all that, the nitro boaters on here may well add comments, or correct me.
Ian.
PS nothing wrong with your English.