Organising a Bike jumble sale for the local club and looking for the cheapest way to gain payment online…ive got a paypal account but the fees can be steep..any other ideas? Trying not to use my bank account

Why do you need online payment for a jumble sale?

Appologies if im barking up the wrong tree but Is this scotlands biggest big jumble ?

I assume it also has to be untracable for the hmrc and other such bodies if we were to be liquidating stock from a failed bike shop without hmrc / companies house knowing….