Case sealing = silicone :-)
Also have a look at
this for the front adapter. The black part is few $ on ebay and it connects to the scope via DSLR t-adapter.
I am still looking for drawings for faddy's adapter. I am sure I have seen them somewhere. But it is just a ring with a thread inside and a few tapped holes. I am guessing that the thread is the same as the common 2" filters???