Here's a good way to compare it to a dauntless:
So we assume that the CL has soopa engines (I think I forgot to include them... but if it takes them its p/s guns go to str. 2)
Then the Basha loses 2 guns on each side, counting heavy guns as .75 guns (long time ago math...) then the basha is up 1 gun on each side. It doesn't have Improved thrusters. And has 8.5 prow wb eq. -.5 less than the dauntless. Also the 45' turns.... that is important as well.
So overall: +1.5 wb eq. -Improved thrusers, -90' turns. Well, there is the Ork fact of -leadership, which is a factor, and the Agressive trait but that is insignificant especially on something small.
Actually I'm curious how a dauntless looks by smotherman:
Hits: 30
Shields: 10
Turrets: 5
Speed: 5
IT: 5
Armour: 10
Lances: 27
Wbs: 12
104 pts. Hrmmm....
So the ship should probably be about 5 points more expensive.
Actually I think -1 HG is a good idea on the sides.