Dave Elliott's manual may be a good help no doubt...still there are a few details in it which are questionable...unless they have been revised in some later edition ( I have only the very first print).

It would be interesting to check if some corrections have been made.
I just mention one important issue - using PVA glue for valves which I would say definitely is NOT recommendable. Starch glue ( wall paper glue) is a lot more suitable. The point is that valves are expected to be replaced several times during the instruments life time and the glue has to be possible to remove easily. In old days laquer was often used (being brittle and easy to scrape away)