Re: adding oars to a mercury 380 12.5foot??
There are several ways to go, but each oarlock "system" for inflatables requires that you buy a particular style of oar. Only the Avon oarlocks will allow you to use a basic wooden oar (any old wooden oar), so you can buy the length that you would need for the wider Mercury 380.
Defender had them in stock. They are $40.00 each and you'll need two. Then you can buy cheap wooden oars to go in them.
S-