http://search.ebay.com/toyota-alternator_W0QQdfspZ32QQfromZR40QQfsooZ2QQfsopZ3QQsbrsrtZd
range from $140 for a 150amp to $200 for a 170 amp and thats also ebay and not proven ratings .
also can i just find a gm high output alt and make my own brackets or that wont work. and are they any other cars or trucks that are swappable or no?