Forget FRED, not even in the same league. Luton Minor has some merit - read the books by Ord-Hume for some great stories of the early days of homebuilt flying in a Minor. You could probably pick one up for very low thousands, but being old-tech it will cast more to fly than something less draggy - the more hours you do, the more fuel costs become a factor, so for 10 hours a year the Luton is great, but for 100 hours a year it's probably worth shelling out more for a Jodel or Turb. Another thing to watch is MAUW - they are quite heavy and if you are bigger than a teenage marathon runner you probably can't legally carry full fuel
