Hi jb! Thanks for your comments. Yes it is the AMT kit and yes the top does need a lot more work, as it's the first time I've tried copying a canvas roof.
When you say 'coating them with white glue', do you mean brushing the white glue on the kitchen towell/paper, then sticking them to the roof unit and waiting to dry and trimming around the edge?
I have a few other of these plastic tops, so I can try other methods, thanks. What I might try also is to go onto YouTube and see if any modellers are doing a tutorial on this subject.