Gould Service data

[Gonzini]

Hi guys
First post around these parts, i've become a EEVblog convert having been watching the entertaining Youtube channel over the past few weeks
So anyone know of a resource online for Gould schematics, its near on impossible to find much out these days.
I've got an old Datasys 750 which i would like to get going again as its just junk taking up space at the moment.
Really could with some service data for it.
I know its old, a dinosaur and probably not worth the effort but im going to have a go   
Cheers!