1970 Traveller with the usual terrible case of rot

I have about 95% of the wood ready to go on which an incredibly kind mmoc member gave to me as a second hand set!

So far i have, using the haynes restoration manual:
- Removed the rear seat parts
-windows
-back doors
-seat belt bits (Eventually)
I'm now ready to carry on...however i have hit on a major problemo that i just can't work out... It says in the book i need to prise the rop rail off as there is a large unaccesible screw that runs through... How would i go about doing this?![frame]