They're pretty rare, but a Cozy IV would tick all the boxes I think?
There was an out of permit Cozy Classic (the 3-seat version) on AFORS last year - no idea if it's still for sale, and if so, whether it's convertible reasonably easily to the 4-seat Cozy IV standard?
Regarding the Stinson - I have one on a private CofA (currently lapsed, and for sale due to a combination of an unidentified engine problem, and a fallen-apart syndicate); about 780lb payload, with a small baggage compartment. It's most of the way to a PtF aeroplane in that you can do most work yourself, but it does need a CofA annual which is pricey - on the other hand you can take it night (which is fine) or IMC (which I'd not make a habit of). I asked a couple of years ago about getting it onto an LAA permit but got the firm answer "if it can have a CofA it must have a CofA", which I think is still broadly CAA policy.
Not vintage, but I was very impressed with the Jabiru J430 when I got to fly one a bit - ticks all your other boxes (PtF, 4 seats, owner maintenance...) Payload is okay, rather than good - but that's true of most 4-seaters.
Ditto Wassmer Wa51 - there was one advertised for sale out of Humberside not long ago.
G
Last edited by Genghis the Engineer; 20th September 2013 at 11:59.