The reality is that most PA-28s and 172s won't carry 4 reasonable sized people and reasonable amount of fuel. There are few in pieces littering the countryside from people who have tried.
Don't be tempted.
The answer to your question is it depends what is available to you via your school or club. If you can find a 200 hp 172 or 182 or Piper Dakota you stand a chance
An Arrow is a complex with retractable gear and so you need differences training and a sign off and nobody is going to let you just hire one with a PPL + 10 hours.
Maybe you should take your GF one week and her parents the next while you are building the hours to get to use a more capable aeroplane.
Last edited by Dave Gittins; 19th Mar 2012 at 13:22.