40mm sounds about right. The larger motors should be OK with 45mm. You dont usually get much choice on pitch with scale props, I've always been happy with what came out of the shop.
For any particular boat, I would try to google for images and see what others have done. A 540/600 size should be fine for cruising the boat. If you want to do serious towing, use the bigger motor. A mate of mine likes tugs and did competitive towing. He would habitually, in a tug of that size, put a pair of 700 size motors in if it was a twin prop boat.
To figure the ESC, take the claimed normal running under load figure, multiply by two, get an ESC that will handle at least that. Remember that Hong Kong Amps are much smaller, and the placing of the decimal point in the claimed rating tends to be a bit casual. Fuse the positive lead between battery and ESC between the anticipated motor demand and the max rating of the ESC.
Like I said before, a google for "artesania latina amsterdam" will find you lots of links, including build logs by people who have built this particular model. With a build this size, I don't think that there are going to be many cheap options that will work. Consensus of the links I have looked at point to it weighing in at about 35lb.
Since it is a scale model, once you have googled for the information, you should know the horse power of the original. Scale this down add 50% for model inefficiencies, and you will have a wattage figure for your motor so you will have an idea about the needed current draw at the voltage you intend to use.