No Sponsor,
I'm also in a similar situation (if I get the last few exams nailed in October).
When you say ' those schools that offer more sim time appear more expensive', be sure to check that the cheaper schools included everything, eg approach and home landings, budget solo rates for the tests etc.
Some of the schools I've contacted after reading their adverts, admit that the quoted price is the basic aircraft and instructor rates.....so if you are planning on making any approaches, or even contemplating a home landing (shock) add on the pennies!!
Cheers
GQ