Nice!!!! I hope the eggs are viable but I hate to be the bearer of bad news You are going to have a much longer wait! They take much longer than veiled or panther eggs. I would incubate them between 65 and 70. They should hatch out around 11 months.
You can slowly raise the temp up in the last month or two but I dont think its the deciding factor if they hatch or not. I had 100% hatch rate with all three of my tavetana clutches incubating them between 65 and 70 constant.