That is what I did as well.
A little small in terms of surface area, but not too bad, and plenty strong in the end.

I slid a length of heat shrink onto the new wires before soldering, then slid them down over the stubs to prevent shorts.

Also, a heat sink clip is probably a good idea to prevent the hot terminals from melting the connector.

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1986 300E 5-Speed 240k mi.