I wouldn't even get a new unit - get the blown one fixed. They are pretty much infinitely repairable. Check out the yellow pages under auto-electrics etc. There are people in most areas who specialise in just alternators, dynamos and magnetos etc.
They are only a real pain to change on some modern cars where they are buried under other components.
-|--)How to change alternator?It's fairly simple to change out an alternator. There are typically 1-2 bolts, and 1-2 wire connections (usually a cable held on with a nut on a stud, and an electrical connector). The alternator is usually toward the top of the engine, making it pretty easy to get to.How to change alternator?yes you can do it, but i recommend buying a cheap set of sockets and end wrenches,and from the sounds of your typoaccent,metric.read any instructions in the box.sometimes there are special replacement parts or special instructions.