rauxaman
Not knowing your previous experience I may be "teaching mother to suck eggs". However, I have recently bought a Piel Emeraude. (search G-INFO G-BKUR. Costs: farm strip secure hangar £100 per month, Fuel, mogas 22lph, Maintenance, DIY.
Guestimated, prob conservative, annual cost ~£2500 (inc hangar, insurance, light maintenance, no engine rebuilds) +fuel.
I looked at the Kitfox but thought it a bit on the light side, just my opinion.
My Emeraude cost me £16K, after inspection & work recommended was complete, total initial cost £18K.
Tailwheel training if you need it ~10--12hrs.
£12K is possible, check LAA magazine, one in there this month, Avid Speedwing £12500,
Must be a LAA member by the way to take advantage of the Permit system, but much help & advice available from them.
Advantages: independence, fun, freedom, more fun.
Good luck.