Murder Game Shop GUI? [closed]

I need help making a murder game shop gui, like the ones you see in TM or MM2. I am not very new to GUIs and have some experience. But shop GUIs especially the murder ones, I am very poor at it. Of course some of you will be asking how much I will get it paid, it will cost, etc. ATM I am only NBC and have no robux/tickets. The only thing I could give you is credit in the game. But if your still willing to help me, please do so. I have made many attempts to scripters everywhere and failed. I have also tried making the shop GUI but I just get so confused on what to do. This is my only chance. (BTW I most likely will need step by step instructions unless you can make it for me and then tell me how everything is put in for the GUI to function properly.) The problem is that I understand how to make the shop, Its just that I don't get how to make the next textures appear during the game or the shop GUI script. I really need help and I'm sorry if I was not right in this post, It's my first time.

Please and Thank You! - Bmmfan