More questions than answers...
Have you any estimate how many hours you will be flying per annum? With a full time job and perhaps a family who want you to look into them now and again, it will be nice if you can manage 50 hours each year.
50 hours per year is "generally considered" the minimum to economically justify full ownership. Have you considered joining a syndicate?
Do you really want a "plane" (termed "Group A" by Richard WK above)? iow have you considered microlighting? There are some limitations, but a mid-range microlight offers every satisfaction you could get from a two-seater "plane" such as a C152 or Jodel - and there are high-end microlights that merrily outperform them. Another alternative might be a Permit-to-Fly plane - just like microlights, these allow you to do your own maintenance and repair, up to a certain point. That is a big cost saver, IF you enjoy tinkering AND have some knowledgeable fellows ready to help at need.
But if you want more than two seats, or two seats plus fuel for several hours' flying plus luggage for a week or so then a microlight is insufficient.
And still on the budget subject: remember to think about setting up a fund for major costs such as engine overhauls.