open your favorite aircraft sales web site, look for popular models, such as c150, c172, pa28. Notice any guys/organizations selling multiple aircraft - these guys are probably dealers. Call them up, state your case, more than likely they have a c150 sitting there with couple of hours on the clock left before needing annual/overhaul whatever else and they will be happy to rent it out for you for peanuts IF you buy something like 20 tach hours and promise to use them within a month (use them or lose them anyway).