So, just to close this thread with a defenitive update:
She will get new 4-2 exhaust manifolds (the old ones are gone), a Weber / Edelbrock carb, full heat shielding and sound deadening, all of that this year. Maybe even a roof top tent...
I had the same style rack fitted to my 90.
It does indeed require gutter clamps.
There may be further images on my hard drive, i'll check after work and get back to you.