I know, I know there's more to it than it seems, but consider for a moment a
$250 Japanese rack to support your
$23 MUSA basket that actually comes with supports (doesn't require a rack, YMMV).
Is it a big improvement over the integrated struts that looks every bit the hand-crafted $250 brazed rack it is? For sure. But it is kinda funny that the same people selling you a $250 rack for a $23 basket also suggest you
do this to mount a pump on a bike they themselves designed without a pump peg.