Hi Alec,
I'll try to remember to take some of mine when I've caught up with work - too many shows & trips
I made the awning poles for Patrick's and for mine as neither had them fitted (they were a Searle option).
I used 1" square thin-wall tubing as I had a load in stock, so not exactly original, but does the job.
The tubes inside the roof are normally only about 3' long and supported with a bracket rivited to the inside side of the roof. The problem with that design is that when you are pushing the poles back into the roof, if you've got things stuffed into the pockets they get in the way. I used 40mm plastic waste pipe for the inside tubes and made them the full length of the roof so the poles slide all the way in without problems.
As I say, I'll get some pics of mine and hopefully someone with an original set will help out as well.
If no-one else comes back I'll try to take some at our next show (this coming weekend at Peterborough) as we'll have 6 Carawagons there and at least 3 of those have original poles
Oh, I do remember that there are no corner poles or sockets on the original sets - I have seen a centre vertical pole to take the weight when the awning is on, but that might have been a later addition and normally they are self supporting; when fully pulled out there is still about 2' inside the supporting tubes in the roof.
There are 'sockets' in the back of the roof and the middle of the curved section for the centre horizontal pole though.
Cheers,
Robin.