Brakes or new axle

I've got a 59 caravanner single axle with electric brakes which need to be replaced (one of the brakes pops a fuse when a charge is applied). Looking at my axle it appears to bow down about a quarter to half inch in the middle with a straight edge across the top. If you were in my shoes would you look to replace the axle(currently welded on) or just get new 12" brake assemblies?



Thanks