Hi Dave ,
Looking good so far, I'm glad you started it, actually got mine after reading your review (not actually MG version but the artillery tractor but a Fiat anyway :-)).
One thing to lookout in those kits, if the rear is solid resin , then the rear axle is too thin to support the weight and the wheels tend to camber (hope this is the proper english word) badly. I'm still pondering replacing mine with one scratchbuilt with plastic stock and wire.
Looking forward to seeing your painted up Dave!
Cheers
Greg