This seems a bit of a strange discussion for this area of the forum, I would have thought that anyone contemplating this sort of unique modification would be a little more familiar with materials technology and given they have a 260/R75 V8 and are a member of the MGOC, have become a full member in order to access all relevant information.
Being a new member, Kaelum may be waiting for blue to go green of course.
Just my thoughts.
Nich.