Unless you enjoy cursing, skinning your knuckles and standing on your head DO NOT BUY A $50.00 STARTER. Because next week you will be installing another one. The best thing to do is rebuild the starter that you have, or buy an OEM (very expensive). Or buy one from a reputable supplier, I bought one from Overton's (Arrow Brand).
$220.00 from the dealer sounds pretty good, just make sure that they are using a quality starter, they are very hard to change because you really can't see what you are doing, the starter is kinda behind the exhaust manifold on the port side of the ski, very hard to get to.
Lou