Hi Bill,
I u know this was a difficult decision for you and I'm glad you're comfortable with the decision even though you were hoping for a different outcome.  
Dry mouth is no fun, I won't even try to gloss it over.  I am two years out and now it doesn't seem so bad, I feel like my saliva is better then it was 6 months ago.  I was lucky that one salivary gland on my noncancerous side was spared.  Be sure to ask your doctor if that is a possibility for you.  
I can eat anything I want to, but choose not to eat some things as it requires to much work.  The things I have given up that I used to LOVE is potatoe chips, just to much work BUT alot of that is due to the fact that I am still having many problems with my teeth and do not have a good chewing surface.  I suspect that when I get my implants, I will be back to eating my chips.  I eat bread alot, and I still make sandwhiches.  I eat any type of meat but prefer steak with cheese on it.  Pasta is great.  As I said, I eat everything and with some of it just take an extra drink in the middle.  I do not have huge issues swallowing, although I have noticed a tiny, tiny difference in my swallowing lately when compared to a year ago.  
I wish you well with treatment and keep hold of the thought that it will pass and you will survive it and survive it WELL and cancer free.  
Minnie