Books- Books are used in Harry Potter to study new spells. In the Harry Potter universe the second volume of The Standard Book of Spells cost 1 sickle. Therefore I am going to say that all books cost 1 sickle to buy. I will update this later as I pour through the books to find specific spellbook costs. Not all the books in the series are in here, just ones that will most likely be used. For the rest its just a best guess for how much it costs
Care of Magical Creatures
Fantastic Beasts and Where to Find Them by Newt Scamander
General Spellbooks- This contains a variety of spells generally taught in Hogwarts and contains Charms, Curses and Anti-Curses, and Transfiguration. These books are written by Miranda Goshawk.
The Standard Book of Spells, Grade 1
The Standard Book of Spells, Grade 2
The Standard Book of Spells, Grade 3
The Standard Book of Spells, Grade 4
The Standard Book of Spells, Grade 5
The Standard Book of Spells, Grade 6
The Standard Book of Spells, Grade 7
Defense Against the Dark Arts
The Dark Forces: A Guide to Self-Protection by Quentin Trimble
Divination
The Dream oracle by Inigo Imago
Unfogging the Future by Cassandra Vablatsky
Herbology
One Thousand Magical Herbs and Fungi Phyllida Spore
History of Magic
A History of Magic by Bathilda Bagshot
Potions
Advanced Potion Making by Libatius Borage
Medical Draughts and Potions by Aresenius Jigger
Transfiguration
A Beginner's Guide to Transfiguration by Emeric Switch
Intermediate Transfiguration
Guide to Advanced Transfiguration
Brooms
Firebolt- The Firebolt is the fastest broomstick in existence. It is capable of going of reaching speeds as high as 150mph in ten seconds. In game terms the broomstick is capable of moving 350 feet per round. Due to its high level of craftsmanship it also grants the rider a +2 to Broomstick checks. Cost- 200 Galleons
Cauldron and Potion kits- Cauldrons are used for Potionmaking
Pewter Cauldron - 10 sickles
Basic Potion Kit- 5 sickles
Wands are made of a wood, and core of the players choice. A wizard has a -2 -2 for using a wand that's not yours for all spellcasting checks and -10 for using a broken wand. Additionally, upon choosing a wand the wand gains one of the effects listed below.
Gain a +2 to Charm checks
Gain a +2 to Curses checks
Gain a +2 to Counter-Curses checks
Gain a +2 to Transfiguration checks
Gain a +2 on attack rolls made with the wand
Gain a +2 on Damage rolls made with the wand
Reroll any Charms check once per day
Reroll any Transfiguration check once per day
Reroll any Curses/Counter-Curses check once per day
Cost: 7 Galleons
Here is an alternative way to determine the type of wood used and the effects of the wand.
At 1st level, when you purchase a wand from Ollivanders, Gregorovitch, or any other wandmaker, make a 1d10 roll three times (one for the type of wand tree, one for the wand core, and one for the wand property). Compare the results with the table below.