Hi mate! Welcome to the site btw 🙂
Dont talk to me about power steering pumps! haha.. My old 22 coupe's one was Sooooo noisey!.. and had trouble finding one. But i did find many power steering pumps on ebay for veccy 22.
You should find a good second hand one for about £40 - £70 but if you went for a new one mate, your looking £250 - £350!! and thats without being fitted :/