I am soooo sorry you are going thru this...and I feel for you, I really do...I have been there before w/ our Shih-tzu many years ago.
This is going to sound crazy, but I can't imagine my life w/o Mojo..and I know you feel the same about Scooby. I am also not a big believer in cremation, but I couldn't have it where I wouldn't have Mojo around...so when the time comes (I hope it is many many years away), I will have him cremated and turned into a stone so I can have him with me no matter where I go. (although, I know he will be there in spirit). I couldn't possibly think of burying him somewhere, as I know we would probably move and I couldn't leave him behind.
Oh goodness....

Just let it all out....we are all here for you and many have been in the same situation. Rest easy knowing that he is still with you and always will be.