the condition is a lot better than mine, i have the wrong forks and wheels.
Looking closely at your bike it would seem that the forks are pointing the wrong way, if you look at the picture below the forks point outwards rather than inwards.
Also i'm not sure if you have non-military carb, the military ones were just brass, yours may be from similar era lawnmower, The screw top of the carb which is undone to remove the needle is identifiable as military id the "grip" to turn it is crossed like XXXX but if it is civilian it has vertical grips like llllll . Villiers services stock the XXXX type and probably have the full brass carbs, i will send some photos.
Another thing which i would need to confirm is that a lot of welbikes have clutch levers with the lever pointing towards the rider (mine does not and i don't think yours is) i am unsure id this is right or not i will try to check.
Other than that yours seems to be very good! I am jealous.
Martyn