White desk (or just top) at least 100cm x 70cm (Heath End RG7)

Hi, my daughter needs a better desk for GCSE and A level work, she currently has a nice child's desk but the surface is too small.
Biggest size we can fit is 100x70cm, it's not a size I can easily buy but I can cut to fit, so any desk with a white top at least that size, in nice condition, would be great please.
(the legs don't have to be any good, I can leave or take and use/recycle)
Thanks for considering!