Welcome to Gaia! ::

dont bother with the kits, most of the time they have cheao products that dont last long. you will want a uth to head with and something to control the wattage so it doesnt get too hot. i think temps atoung 90 are good but double check. ive never had a corn but my sister has and i think thats what she had hers at.

also invest in a humid hide, it will help with shedding and that way you can ignore the humidity in the rest of the tank. the one i use for my leo i made myself out of tuppuware

im not even sure if you need a heating light, but its up to you.

im going to suggest prekilled mice, but once again its up to you

join some reptile forums online, people are usually pretty friendly and have good advice, though like any other animal forum you will have people with outdated advice who swear they are never wrong. always do independant research and double check what you are told, dont just blindly believe everyone

as for sexing, no way to really do that other than probing or popping. popping is the saftest for the snake but unless you know waht you are doing you should let someone else do it. popping is just rolling your fingers around the vent to squeeze out the snakes junk. some reptile stores will do this for you, or you could have your vet do it. ive never bothered sexing my snake, i just caLL her a female, with balls you can kind of guess based on tail and spur size, i dont think you can do that with corns though but i could be wrong

and when you get him you have to post lots of pics! how old is he?

nice tank. is it a 55gal?

can corns not see red light?

also since you have so much space i would recomend getitng another hide, one for the warm side and one for the cool side