You need to be budgeting around 5K a year minimum IMO to stay not just current, but on top of your game.
Others will be along no doubt to say that they spend four bob a decade because they have a micro something or other and do all of their own servicing.
Around £3k a year renting. Others will be along no doubt to say that with that little flying there's no way I can ever be safe, but we're not all as rich as them.