Veiled Incubation

[Katatonic]

Hey there all you chameleon fans,

Recently, I have had bestowed upon me, the awesome responsibility of incubating a clutch of veiled chameleon eggs.
I personally have a slight background covering chameleons and have knowledge of the basics, i.e. temperatures and that whole "rise/fall" issue regarding incubation.
What I was wondering, was if you enthusiasts could give me slight pointers regarding incubation, such as: constant temperature and its effects on the eggs, medium used *which is an opinion on which I would appreciate, what have y'all had success using*, what COLOUR should these eggs be one week into incubation, and what are the average lengths of incubation at specific temperatures??
Thank you in advance to anyone who can give me a few pointers here and there, and share their knowledge/experience.
Cheers ladies and gents.
LATER.