Or just keep your drive and do a laser swap. You can find a new laser lens on ebay for $20 as I just bought one. Since you are opening your wii and taking out the drive already it is just one more step to get to the laser (youtube again).
That should save you $40 which is conveniently the price of a mod chip. If you are looking for a wiikey 2 I can sell you one for pretty cheap just PM me.