Hello all! Thanks for all the replies. I went into 3DS , created a 50x50 plane (with units set to centimeters), exported it, bought it into Unreal Engine, selected all my spline segments and used the plane. I am now using a material override to change the material. Next, up is creating a water material. I’ll worry about flow direction later. The plane also resizes itself based on the spline. I’ll post the results later! 
