Update on the gun and for those who may have a broken firing pin.

Finally made a new front sight post to replace the one that had rusted off the lollipop.  Got a 4X48 screw, mounted it in a dremel and put the dremel in a vice.  Then held a regular then a small diamond file against the screw to remove the threads and contour the lollipop tip and then polish with 600 grip paper. Then cut to length and used a .020 thick dremel diamond cutoff tool to put the screw slot in the shaft.  I lucked out and got it right the first time!

Second, made a new firing pin based on what others told me it should be like.  Old one was broken into 3 pieces as shown.  Turned a 1/4" drill shank down to size, about .225", then drilled a hole in the face and inserted a 5/64" drill shank, silver soldered in and cut to length.  The original firing pin was 1/16" dia. so this is just slightly oversize--but it needed to be as the firing pin hole was worn and this took up the slack for a nice fit.  Also, now the firing pin hits to the very edge of the cartridge head, whereas the old one was hitting slightly away from the very rim due to worn firing pin hole and the original 1/16" diameter.  Have now run 150 rounds of CCI Std. Vel ammo through it with not a single misfire.  This took me two tries to get right. Problem solved!
Next order of business is still to get a repro or OEM wire stock and rear sight (thanks to some leads Sendaro).  Still pretty sure I'll leave the barrel as is--wont make a decision on relining it until i get the other parts first. Yes, the firing pin is offset a bit to the top to better align it in the worn firing pin hole.
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Nice work. Amazing what you can do with the right tools and a lot of patience.