Searching for parts

While I have been waiting on my plans I am searching for some parts I will need later on.
First up is two 40mm water jets. I know a place called KMB that makes them. The downside is that they cost kinda much each, and I need two :(.

Here is a picture how it looks:

The engine I am thinking of is this:

It´s a 26cc gasoline engine and will do the job. I am still looking into what kind of radio I will use.