1969 Sunbeam Alpine Arrow. Body mods

My initial thoughts are is there a Crayford club or one that covers them? There would likely be expertise there on the normal ways of strengthening when removing a roof.

We were somewhere around Barstow, on the edge of the desert, when the drugs began to take hold. I remember " snipped-for-privacy@iol.ie" saying something like:

A mate of mine had a Crayford converted Mk1 Cortina and I recall the inner sills were strengthened with fairly large box section running front to back. That was only the most obvious mod - quite what else had been done to stiffen it, I don't recall. Mind you, I made a Hunter convertible, simply by brazing up the doors shut and angle-grinding the roof off :) No problem with stiffening, there.

Brazing... don't like the sound of that on something that has become structural!

Depends. Some modern brazing methods are as strong as a weld. Maybe even stronger.

I've certainly been impressed by the quality of brazed joints I've been able to managed recently using pre-fluxed rods. I was hoping that it was forty years of practice eventually paying off, but I suspect that it's an improvement in gas torches and brazing rods that's the real cause.