The average my students take to pass is 54 hours in a Schweizer.
Having worked in schools with both 300 and 22/44 the 300 students normally pass in about 12% less hours
Dont forget the following costs.
1. Medical £ 175
2. Books etc etc £ 220
3. PPL exams can be as much as £ 50 a go times 7 ( thats if you pass first time)
4. Skills test fee allow £ 250 plus examiner travelling
5. CAA licence issue £ 168
Do not fly more than 3 sessions a week ( session is 2 lessons in a morning or afternoon), the brain in the first half of the course needs to assimilate the information, let alone trying to keep up with the book work.