80 sheets?
Here is one for around £30
https://www.ebay.co.uk/itm/335282178919?gad_source=1&gbraid=0AAAAAB_7XZwXlSm2zr5KWr5muXwmBtxSz&mkevt=1&mkcid=1&mkrid=710-53481-19255-0&campid=5338723872&toolid=20006&customid=CXD8HlsdAAAAj3O93dzqpMCYPdRGAAAAAA
A move to plastic blades or even a metal one...