Custom fab and you need to get your hands on those seats before you buy and see how low they will let you mount them. Check out my build or BFerrari's build as we both went with Toyota celica seats. They sit low, were rather easy to adapt and are comfortable. Ben is as tall as you are and he is sitting much lower and looking through more of the middle of the windshield now. For me, I am 5-11 and I now am looking through the dead center with those seats.