You're looking to buy bolts? All our sport routes already have bolts, so you can save yourself some cash
Unless you plan to bolt some routes yourself... in which case I must just let you know that many of our climbing areas are trad, and off-limits to bolting. Also, you need to apply for permission to bolt at sport venues... it's not difficult to get permission, you just need to ask first. If in doubt, contact the Mountain Club of SA, and they will point you in the right direction.
Hope you have a great trip.