Pete,
I'm not sure if anyone other than Airfix makes the 1/72 Hally-bag. I've built this kits and while it turned out to be a reasonable looking model, it didn't go together without its fair share of problems.
The control surfaces are moveable. It's quite easy to make them non-moveable. It looks a little more real than having to shade the recesses if the surfaces weren't moveable.
As I alluded to in another post, the cockpit canopy is poorly moulded. It doesn't fit properly at the rear and right side of the fuselage and you'll require something like Humbrol's Clear Fix to attach it properly and to fill the enourmous gaps.
Second, the method that Airfix uses to mount the guns in the upper turret are absolutely horrendous. There's a poorly moulded crew figure (half figure actually) with a large ring where the hands should be. You slide a rod on one half of the guns through this hole and then attach the other half of the guns to the pin. Then ther'es the issue of the fit of the clear part of the turret to the "dustbin" it attaches to. This required a fair amount of modification.
Third, the seam that runs along the spine and belly of the aircraft requires a fair amount of filler.
True to Airfix form, this kit requires a fair amount of attention and extra work. However, with a little elbow grease and patience, it turns into a fairly acceptable kit.
I've never built the Airfix 1/72 Lanc. My wife spoiled me a few years ago with the Tamiya 1/48 Lanc.
T.T.F.N.
Murph