Have edited the original post as I now need forks as well. so Forks and crankset are the priority. I've decided this bike means too much to me to just cheap out on the parts so I'll just buy parts as I can afford them.
I dont know to be honest. They're hissing air, clunking and leaking oil out. I have no idea how to do work on them and wouldnt have the confidence to try so it's better to have a new set. To be honest they've never felt right so I just want to replace them. I'll find the money. Have sold all of my retros