A custom-made bike won't be cheap, so you need to tell us your budget. Also, in addition to your height, it would be good to know your arm length, torso length and inseam length. For example, I'm 6'2" but have the torso and arm length of somebody about 6'6". I ride large frames with the longest top tubes I can find and then also typically swap the stems on vintage bikes for a very long 120 mm technomic stem so i can really get stretched out in the drops.