As Michael H said a front facing HD rectifire without bobbins will do fine & also be a lot cheaper than a Morgan replacement.
My car had the bolt in chassis brace fitted for free but still the chassis cracked just behind the top suspension mount. I had a replacement chassis at no cost even though out of warranty on my July 2013 car. Take a small mirror & torch with you & check the chassis tubes behind the suspension mounts.
Take some waterproof trousers with you even if dry to keep the wind off. If you have large feet take your narrowest shoes as there is not much space between the pedals.
Tim
