wall steps for cat or kitten

I bought 4 handmade wall mountable steps and hammock for my kittens in September and paid over $200 with shipping and everything. I've not been able to put these up and now an moving to another place with drywalls. I'm not comfortable mounting items on dry wall so am hoping to give it to someone who would enjoy using the item. For more information on the items and specs please check out this link on Etsy. https://www.etsy.com/listing/718326612/cat-wall-furniture-cat-furniture-cat