Could the mark viii befenit from a front or rear strut tower brace? Has anyone ever made one for their mark?

yes their is benifits... johnny langton over on tccoa.com can make one for the mk8

The clearence is VERY tight, as the gen 1 intakes are very close to the hood. The gen 2's have the bulge, so there's more room.

I am working on a template with my buddy at his fab. shop for his 93... definately do-able...JL might still have some...if not, I am sure he'll make some.

he offers a whole chassis brace set up as well.

Yes, the Mark VIII can benefit from upper shock tower bracing...