I have one of these, but haven't shot it much. I noticed the Numrich Gun Parts sells parts for this pistol. I have been trying to find an original magazine for it, but those are not easy to find. Reproduction ones are available, but I would rather have an original.
As for lubrication points, the usual spots are good (slide grooves etc. In case you didn't already know, to disassemble the pistol, push the buttion in from above the barrel and pull out the front sight. The slide should easily come off after that.
The -1 and -2 models had problems, FTF, barrel coming loose on -1 models, but the -3 models were supposed to be a good pistols.
The one I have has a blue finish. I have been looking for a nickel one for awhile, but have yet to locate one.
I hope this helps and enjoy.