Sopwith Camel info

This is a bit of a side project for me to destress.Currently our museum is restoring/rebuilding a replica camel that was part of a deceased estate in Victoria.We have stripped back the covering (caravan siding and plywood covered in fibreglass) and repairing the structure.Found a set of Pup drawings but there are some things that are different.One of these is the Vickers gun mounts that we will have to remake as what was there before was very untidy.Anyone got some rough measurements?:D