2.7mtr garden parasol - for repair (Wilstead MK45)

Hand cranked no tilt parasol for repair or spares. Cord is jammed on pulley. I have a new cord but replacement is too technical for me. With YouTube & patience it could be repaired. Hopefully someone can sort it out! First photo is of a similar one. This one cover is green but faded. Please state when you could collect if interested