I think the Dragon kit 6048 captures the front hull contours of this particular style hull casting very well.  However the hull is too wide and the sides are more vertical than they should be.  This is an attempt to solve these issues and in the process, reduce the overdone surface texture.

The hull sides are extremely thick. Just reducing the thickness of each side by 75-80% will get you in the ball park for the correct hull width.  In my attempt, I thinned the sides out a bit more and got it to the same width as the Tasca hull.  My first step was to back-fill the inside of the hull with a layer of dental resin, Fig. 1.  I also added a couple of cross-braces of acrylic rods to keep the sides flat while sanding.  I had no idea how thick the hull was at the curved portion so I was generous in the amount of material that I added.

Using a belt sander, I reduced the thickness of each side and established a 4° taper to each side, Fig 2.  Next I filled in the locating holes and roughed out the curve with a coarse file.  I finished out the curves with sandpaper and removed a few of the cast on details, Fig. 3.

The remaining photos show a comparison of the stock Dragon hull (A), Tasca hull (B), and the modified Dragon hull (C).