I actually gave him some pointers on some manufactures of low cost , low viscosity UV curing resins i tested, on that instructables page - hopefully he'll test them on his prototype.
It will take some time before we can see a DIY, resin-based 3d printer kits..
Another developer is rumored to have gone closed-source on his very anticipated 3d printer and thats too bad. http://3dhomemade.blogspot.com/
Until then i ordered the HuxelyPro which has extremely convincing 0.1mm layer height and according to NetFabb - makers of a commercial software for these printers they can make these reprap models go even 40 or 20 micron (!) resolution... - demo of such quality can be seen on thingverse.com