Dungeon Meshi Themed Campaign?

I've never DM'd before, I went to a board game club in highschool with a few friends and two people were trying to gather enough people to play some dnd and ended up playing a total of three short super baby-proofed campaigns with them, it was a blast and we convinced our other friends to start playing weekly in which one of us had volunteered to DM.
Recently, our designated DM got bored of it and wants to be one of the players so another friend took over but only for one campaign which is about half way through now, I want to try my hand at it when this is said and done and thought I'd ask for any advice people have here since for some reason Its now really intimidating me.

I love the manga/anime dungeon meshi which already follows most of the functions of dnd (since it's based off wizardry) so it feels not only like a good place to start from in making a campaign seeing as the landscape and monster encounters and such is already mostly figured out with some minor liberties to be taken. Am I crazy, is this a good idea, any even unrelated to my specific concept advice for dming in general welcome and wanted and sorry if this is wordy.