NC Rear Box Section Needs Welding

Looking at the three original braces on my NC1 they start off quite muscular nearest the engine and get flimsier the further back you go on the chassis.
It’s interesting if you look at the likes of ilMotorsport that do a full replacement kit. They put all the serious bracing at the rear.
There are a couple of posts praising the full kit as making the car feel more sophisticated/ more of a piece. It much the same price as one of the more pricy exhausts. Which would you choose?
Or you could gorge on both of course👍