Cool Michael , some ones pride and joy from yester-year , good luck it looks to be all there , a nice focuser , like the ones that pop up here regularly in the classifieds will finish it nicely .
On the mount pipe fitting mounts work very well , nice and solid , here is my pipe mount and scope I made in NZ , its a 5 inch f/13 with a 3/4 inch secondary , a real planet buster as yours will be to , it looks like f8-9 ? .
Brian.