Is this enough free RAM for keeping track of 28 800 bad pixels?
As waterwingz says, it's on the low side. You could be OK just shooting DNG, but you might run into problems running scripts or using other features that need more RAM. Generally, if the camera runs out of free RAM, it will crash, so if you aren't experiencing crashes, it's probably OK for the things you are doing.
Attached is a test build that enables another RAM area. Please check that it loads and runs OK.