First time builder woes!! I am putting together a longrange Renegade. 36 inch Hoyt in 45, 1x20. Soule 4" rear sight, Front sight is Shaver .500 tall aperture. Hole in eye cup is 1.36 above barrel. Even if I went to .850 front, I would still need .500. Does anybody make a 3/8 dovetail half inch sight riser? I would appreciate any advice. Thanks.