As my buddy Fred Gorke is fond of saying "it's merely a bolt on accessory"
Well, doesn't it have to bolt on first?
In both of the examples here, the mounting bolts (studs, whatever) would not pass through their corresponding mounting holes. Not exactly what I would term "precision".
If the manufacturer had stated that the part would need to be "fitted for precision alignment to your component", OK then, I would expect to have to perform some "fitting".
I think that it is a bit misleading to advertise a "precision lazer cut part", when in fact: It doesn't fit. This is probably just my anal retentive engineering nature here, BUT, it has to be one, or the other, in this instance.
This is a common complaint from those who buy low production, specialty parts.A/ Not as much of a problem for me, as I have tools, machinery, welders, etc, and the ability to use them;
2/ More of a problem for Chris, as he has less tools, etc, and therefore less experience with them;
d/ It is a serious problem for the enthusiast with a kit of wrenches and screwdrivers, and little to no experience.
I also realize that this is exactly the situation where we all learned how to "Hot Rod" and modify parts. Keep in mind, though, that this is not the case with everybody. We all know guys like the proverbial Jack Yates, Jr. His modifications and fabrications don't turn out so well . . . . . .
JMHO
There, I feel much better now Dr. Crane . . . . . . . .

and Happy Frozen New Year
Ilikefrozenmagaritasboy