My LDV Convoy (22 years old) is like that.... a cross between Trigger's Broom and The Forth Bridge Painting job.Whilst repairable I think it's very near the end of it's life without substantial work. If you do what is needed to get MOT this year then there will only be something else that need welding next year - and so on.
It was ok till maybe 5-years-ago, and since it's been a weld-fest... and mine's not one of the bad ones for its age!
It's why I started learning to weld myself - it just wouldn't be viable to keep it going otherwise.