You can make it as nice as you want, but I think in the end you'll be disappointed in how much of the cage your snake actually uses. I would chop that down to something like 40"X20"X18". A cage with dimensions you're planning would be better suited for a semi-arboreal boa or maybe a blood python. Also have you considered what it will take to properly heat and ventilate an enclosure with 32 cubic feet of space?