That amount ought to be ample. You won't save a deal going to USA, RSA etc. when you add in flights, accommodation, time off work and conversion costs, but you may get better continuity of weather and training.
If you really want to keep costs down, consider an upgrade route through gliders, motor-gliders or microlights before upgrading to EASA PPL. It has the added benefit of acquiring skills on a wide variety of aircraft and a broader base to move on to other post-PPL options.