If you are trying to progress to an ATPL flying out of a farmers field is not that practical a way of meeting deadlines, afterall at the moment a lot of these fields are waterlogged and the aircraft (including my personal aircraft) are unable to fly.
With a C152 I can almost meet the £70/hour flying with in the UK and better it if you take the aircraft abroad and this price takes into account landing fees.
Both LAA examples quoted are subject to a lot of "if's & but's" , the very worst case is if you have a big engine problem even a VW will cost you £1000 by the time you have fixed it and that is before you cost the lost flying. The service that I offer is not as cheap as the LAA route but is finacially much less risky, after all the mechanical risk is all mine and the hourly cost predictable.