I would like to thank Martin, George, Stephen, Scott, Rick and Dave for all the wonderful comments, they are really appreciated.
Dave, I have moved to cross member further back to allow room for the passenger, this also will open up the cockpit for better viewing. I have some information where the fuselage covering came right up to the back of pilot seat so was purely a single seater, I had all intentions of doing my model as a single seater hence the cross member, but after seeing the woven frame and fuel tank it looks better left open.
George, like you, I much prefer to follow original plans and drawings instead of photos of replicas. As you have said, the replicas are built using modern material and techniques which makes the internal structure totally un-original, but the outside appearance looks like an original which I suppose is what the museums are trying to display. Some replica builders go to a lot of effort and build the entire aircraft as per the original (TVAL for example) but these people are extremely fortunate to have access to original plans and material specifications, but the end result is a superb replica.
Des.