Kajan, I'm about to buy a program called Rhino and the render program to suit it called V-Ray. Off the shelf it will cost $1900AU (approx), student price is a lot cheaper. There's also courses that you can take part in, which I think take 3 days (third day is rendering).
The good thing about doing the boat in 3D is so you can see if a object or angle can work, or if the cabin is to long or short. The amount of times I've had to go back to the drawing board because of that, well I've lost count
Anyway, they are affordable, and with your talent I don't think it would be a waste of your time. Cheers