How may hours do you need, and how quickly do you need them?
When I found I needed 100 more P1 hours I found for a C150 for rent dry and bought a 100hr block. This brings the hourly cost down hugely. I then found an airfield with sensible priced avgas (this was before mogas) that would let me park and land for a month and just flew the arse off it. Few landaways except where cheap or free with fuel. A total waste of money and fuel but it got me the hours I needed at about 60% of the price of renting wet from a club. Do it in summer when the days are longer though.
A bit of research should give you a good idea of the practicality of this. I'm sure you can still do it this way.