Repairing a rusted oil pan

[Radek]

Hello fellow listers.

16 years of Canadian salt have taken their toll and here I am with a rusted
through oil pan on the 90Q.  It's only a pinhole for now.  Would anyone have
experience patching rusty, oily metal?  I don't think epoxy will stick.  Any
new technologies out there?  I really don't feel like replacing the pan now
since I think it means removing the subframe.
TIA.

Radek
1988 90Q
1991 V8Q 5-sp.