I would immediate start looking at Pictometry vendors. Air America Flight Center, Skylens, Northern States and Landcare. Submit your resumes with a cover letter as soon as possible. You can build 450-700 hours over the course of a season running from October to May. A lot more opportunities start opening up with even 500 hours or even 1000 hours. On your second season if you choose to do one you'll likely upgrade to an Aztec with a fresh ME rating. At Air America and Skylens you should have more than enough money for your ME add on after one season. You can search the forum for more information on all those vendors. There are also a few other survey companies that will hire with a fresh commercial.
There are a lot of other jobs to consider too. Traffic watch, flying skydivers, pipeline patrol (sometimes you can get hired as an observer and fly on deadlegs), you can also get into being a camera operator for a survey outlet and building time on dead legs too in some instances. There are a lot of low time SIC jobs out there too.
Stay positive! There's a lot out there if you don't mind chasing it or spending a lot of time away from your family.
There are also companies out there that will pay for your instructor ratings if you're willing to work for them for a certain amount of time.