Can't blame someone for trying......
When you don't want...or need to pay for demolition costs....in fact you may even make a profit out of it.... Just sell it "in-situ" but with one kinda important "condition"..... At least there is nothing to loose to have a go.... (eg: ref - https://www.trademe.co.nz/a/marketplace/building-renovation/doors-windows-mouldings/doors/sliding-doors/listing/3269605550?bof=gv7cv4an)