Woo, I'm up and running!
I ended up taking the back plate and just cut off the threaded ends and using them rather than the whole plate. At first I was worried that it may bend the mobo cause no support, but after putting it in there was very little bow to the board, no more than what it would ahve been anyway, plus the board has a small metal backplate for the processor anyway providing pretty good support.
i5 2500 stock for now
-Idle temps: 25-29c
-Load temps: 44-51c
Now it's time to clock it
Thanks again everyone for the help!