Hey there so you're right about it being similar to using coco. Soiless is nice cause you usually know exactly what's going in. Are you going to use like a Dutch bucket or a drain to waste setup? With the perilite only setup i think the biggest problem is watering enough and the right nutrient amounts. You'll likely need to water 2+ times a day and usually feed every watering. If you could mix enough water for several days at one time it'll save you a lot of time. If you did the D.B you could water 3-4 times a day and use around 1tsp/gal of your various nutrient lineup.
Good luck with the grow, I'm excited to watch the process. ✌️