If you use a high strength two part metal body glue to fasten the pieces. Clean metal to bare where you glue. Let the glue ooze through the old spot weld holes. When it dries to a certain hardness cut the oozed bit flush with a sharp razor blade. As the glue continues to dry it will shrink back a bit more and look exactly like a spot weld hole. These type repairs can be stronger then stock if done correctly.
Find a way to practice on some scrap material.
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Lemons or lemonaide, whatever your taste provides.