To be honest, i am undecided as to what I am planning to do with mine, thus keeping it as 2001 or changing to one of the other versions are both options. A few days ago, returning it to the model shop due to the running was also on the cards.
Regarding 2001's valve gear, I'm not too concerned about 2001's valve gear working, but I would prefer an option that isn't black plastic. I suppose it could be painted, but i can't imagine that it is going to make much of a difference to making it look like a metal valve gear. The least effective bit, in my opinion, is the section of the gear that looks as if it is suppose to attach to the connecting rods. On mine the plastic bends away from the rods.
How did the 4mm kit manufacturers deal with 2001's valve gear? Can I not re-appropriate some metal/etch parts?