How can I re paint this rusty sun lounger,?

[Gary111]

Hi, I bought a sun lounger from one of those cheap websites, it's quite comfortable but started rusting within a couple of months.
I want to re paint it, I thought I would be able to remove the end stops and slide out the webbing so that I can spray it, but the stops seem like they are firmly in there despite hammering with an old screwdriver.
Any ideas please?

 

[Gary111]

 

[Gary111]

 

[Burnerman]

If the stop ends are plastic then they will have been hammered in.....they are barbed so can get one hell of a grip.
Broad blade screwdriver and more careful hammering required!
John