There is a strip about five miles east of Preston - just south of N. Luffenham disused.
Google Earth (N52d 37m 01s : W 000d 36m 14s) shows it as about 450m E/W, but when I last looked the other week it it has possibly been extended since the most recent image.
Sorry, I do not know the landowner hence no contact details available, but I would be interested in finding out if anyone knows who's strip it is?
Or, Spanhoe or Shaklewell might work perhaps (details for both on Skydemon or in VFR flight guides)