If I remember the loaded dice III, it was designed by Terry Westrop? In the article I'm sure he was using a 1.40 RX. I'm sure that you'd be able to find a 140 cheap of someone here. They're absolute sewing machines.

I'd hazard a guess and say wedging a 180 in the front would require substantial shortening of the nose, not to mention a fairly hefty chunk of the engine sticking out through it's rather slim frame.