My slight corrections aside, my advice if you are in the UK for a few years at least is to look towards buying a share, rather than a whole aeroplane. Fixed costs of aircraft ownership are higher in the UK than they are in the USA, and particularly in British weather you'll struggle to hit 3-figure hours per year, so a share is much lower exposure, and lower risk when you need to dispose of your share (indeed shares in well run syndicates at popular airfields are usually very easy to sell).
Cirrus' are available, as well as all of the common types you'll have been used to in the USA, and perhaps a few interesting aircraft that'll be new to you such as Jodels and Bulldogs.
G