HI TERRY, Welcome to the forum. Look in the GENERAL DISCUSSION section for MG MAGIC PROMO contact info. They will likely have the door handle. Bran Anderson there knows his kit cars and will fix you up. Hope this helps.
Terry ; I know this is a long ago post but i just found a set of handles they are the same as up grade screen door handles i just put a set on mine , perfict fit and look good and you can get them in chrome .   ; Dan R