decided to Necro this thread - I'm at a hacker space that recently had to DIY a good part of a B9 creator build and the DLP approach is surprisingly DIY friendly. Image processing isn't so critical, but good optics are, and you'll want somebody with experience designing an optical path if you want to be successful in the end. focal plane and distance are critical to achieving clean SLA. you'll also need to retrofit a mercury bulb or a UV LED array.
the real haymaker of the process is the window and the wiper/shifter - most people don't think about this, but when you "bottom-up" SLA like most recent printers choose to. you need to "Shift" the part and the resin to the side before lifting the the part to ensure that the cured portion is ever so slightly out of the focal plane, and that "clean" resin forms a ready layer right beneath the bulk of the existing print with the right chemistry to allow for a full cure on the next layer. this is part of what Carbon solved in their ultra-hyped permeable membrane speed printer. What this requires more than anything is good process optimization and nuts-good mechanical repeatability.
watch a B9 creator printing vid to get a better sense of what I'm talking about.
it's also worth noting that you can skip the wiper/shift BS altogether by just printing with the head aiming down - ala the original SLA as invented by Chuck hull, and this neat little machine -