Pricing advice for car boot sale (Blochairn)?

I have a huge volume of stuff to sell and am wondering what people are likely to pay these days.

I'm going to Blochairn which sees thousands of customers on a hot day.

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My items are:

* Books - complete collections, box sets, adult books, teen books, both paperbacks and hardbacks, most popular authors but with rarer covers

* DVDs - a range of older to newer films, some complete collections, some collectible editions with collectors tins and cards

* Baking items - large range of small baking equipment, moulds, holders, utensils, cake cases, cookie kits, cupcake kits, chocolate lolly kits, cake pop kits, icing kits, toppers, displays, stands, books, presentation stuff, boxes etc

* Jewellery - costume jewellery (mostly Claire's Accessories stuff - rings, earrings, bracelets, pendants, some pop cultute items), expensive shop display boards and stands

*Arts and crafts - Various sizes of easels, canvasses and manaquins, painting kits, travel painting kits, paper, pens, pastels, brushes, folders, art kits, craft kits, stencils

* Odds and end - Crayons, iPhone covers, candles, toiletries, travel accessories, frames, shoes, bags, etc

Look around the other stalls and see what they are asking for similar items of similar quality.
Car boot customers are usually looking for a bargain.