What are the chances of survival?

hadrurus 666

Old Timer
Jun 25, 2007
I have an immature male hadrurus spadix and i keep him at 85F and 40% humidity. His sand is not particularly perfect for burrowing, but he has a shelter which he seems happy with and takes his prey back to. What are the chances that he will molt properly and survive according to any past experiences? By the way am am guessing that hes at his 5th instar,(roughly). About 10 cm from his head to the tip of his telson.
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