Twilight Wedding

Hi everyone, I just got engaged! And we already know what kind of wedding we want but are struggling to find it. We're looking for a twilight package based on and around Berkshire/Hampshire/Surrey. From my research it seems we're very limited. Does anyone know of any twilight packages or venues that don't charge as for us of the venue all-day? Looking at the costs or one or two it's still coming up very expensive as if we're paying for a full day wedding.