Re: help me find lower unit
You can keep a search on Ebay for any item and they will send an email when one comes up. You can also post a "wanted" ad on Ebay.
In the meantime, call the salvage yards. Here is a partial list for you to research. The good ones will give you a limited warranty.
sea-way.com
outboard-parts.com
laingsoutboards.com
tcoutboard.com
fairwindsmarina.com
salvagemarine.com
marinepartsoutlet.com