I really don't have the "sense of points" (??) because when I have to sell something in points, I always give them a random price. XD for example, when I make an adoptable, I decide the price depending on how much I like their design: when I like it very much, I choose higher prices. I think you can try something like 20//30 points per timetable and see how many people commish you.
Do you know microsoft office Excel? well you can use every programm to make tables i guess... then you write your words in it, e.g. "monday tuesday" and so on and then you have the opportunity to use a background picture in excel with that creepypasta background and an appropriateFont and colour it should look good well i don't know how to print the text AND the background picture in excel, so i made a sceenshot and printed the sceenshot^^
ja die sind geil, oder?^^ ist eig ganz einfach, pack ein hintergrundbild in Excel aud schreib die wörter in die tabelle, dann machst du nen screenshot und druckst den aus (because ich weiß nicht, wie man die hintergrundbilder bei excel mit ausdruckt -.-)