I have a 1960's vintage Parker Knoll wing back armchair. (The one in the picture isn’t mine - it’s from eBay - but it’s the same model). It is in good condition but I’d like to cover it in a different fabric. Is it possible to have a slip cover made for a chair like this? Sorry if silly question, but I’m wondering how that would work with the wing back shape, etc. I’m assuming it would have to be bespoke? I don’t want the expense of reupholstering, especially as it’s in good condition.