I've now finished off the pigments stage of the weathering and will probably add a little bit more dust to the turret roof using some acrylic wash heavily thinned. Everything bar the two turret sights is now fixed in place as well. With the gun barrels in place it really is an imposing beast!
Also I can now accurately gauge how big a base I need to display the finished model. I think one of the tamiya long bases should fit the bill nicely.