This link to the two volume book set Clinical Avian Medicine might have every thing you're looking for:
http://avianmedicine.net/publication_cat/clinical-avian-medicine/
This chapter from the above has dosing info for most medicine used in birds...
Like you, I really wish there was an all inclusive "do it yourself" book with info on how to do bumbles, sinus surgeries, tube feed, etc. But more importantly, I'd like to see one that also had correct dosing info. Since such a book doesn't exist yet, I have purchased the following:
Plumb's...