Thomas I have been flying for about 30 years now and the Cessna 150 (152) is still my favourite aircraft to fly. I'm very slowly building a KR2 as a single seater because I could never get myself plus my wife or either of the kids in and stay under a reasonable max weight. If I were you I'd either be doing my training in a flying school (or club) aircraft or buying a cheap second hand C152 or Tomahawk. You should easily get your money back when you are ready to "upgrade", which is something you will probably never achieve with a KR.
Kind regards Phil Maley Perth Australia