Here is how I mounted them while waiting for the 4200 to setup
The two at the very front I had problems with. The way the holes were drilled put them too close to the front bulkhead so the block of wood couldn't be mounted up there. Here you can see where the bulkhead is. I drilled 2 new holes and mounted the blocks farther aft.
Here is the completed ( ? ) project. The silicone was skinning up real quick, so I had to fill the cracks and smooth them out in sections.