Don't boil your malt, you'll destroy the enzymes. Mash the rice up after you cook it and just stir it into the malt. A 60 minute mash at 152F should do the trick.
What Lovibond is the crystal?
Remember one unassailable statistic, as explained by the late, great George Carlin: "Just think of how stupid the average person is, and then realize half of them are even stupider!"
"I would like to die on Mars, just not on impact." Elon Musk