Aluminum Bumper Brackets

Depending on price, weight, and my cash situation I may be interested in a front set for my 74 Duster, it has the standard type of bracket with no shocks tho it did have rear shocks on that mount but with a little thinking, cutting, and welding you can lose the shock and tuck the bumper.

How strong are these brackets? I street drive my car a lot and in the case of an accident I don't want it to crumple extremely easy.