I paid £40 for an iPad screen ( in swindon) about 6 moths ago and it was fitted in the time it took to drink a coffe,
Sorry not near Eastbourne just telling you the price
Had my old Ipad 2 screen replaced in Haywards Heath for £50. Good job, couldn't tell it from the original. They're currently quoting £69 for an Ipad mini to give you at least an idea.
I could not find anywhere in Eastbourne to repair a screen for an iPad mini. The town just seems to have dodgy repair shops where a technician visits once a week.
I used these guys in Brighton. They did a good job and good customer service. Not cheap though. https://www.macman.co.uk