Chris, those are hard to come by.

You can find things that have lids that have decent grooves, so rain generally wont get in them, but not water Tight.
Even the nicer rubbermaid containers can keep rain out most the time.
Pelican cases are Strong and water Tight, but big time money when you get one that large.
Vec, thanks for mentioning this.
I plan to do both of those in about 2 weeks, already have the parts sitting here.
I was wondering how hard the MML would be.
So you couldnt just slide the spacer under the factory mount? You had to take the mount off the motor?
And I thought the kit came with bolt extenders, you had to Shorten one? wth...
~John