Instruments - be careful. I had one come in (a tach) not working. The case was very poor, and inside it the mechanism was tiny compared to original and all plastic. I gave it back unrepaired and told the owner it was done, bound for the trashcan. The factory mechanism is pretty tough, I would repair them or convert to an electronic multifunction instrument before paying for crap like that.
Switchgear - better but not perfect. ie the lighting switch contacts overheat with normal headlight current, you should add relays.
