Thanks all.
This kit is a 1/48th Hasegawa, and besides a new resin cockpit, (I threw out the original pit accidentally; it was assembled and painted and still stuck to the masking tape on my tabletop newspaper cover), I added new brass tubing barrels, a PE ring and bead sight, and a rearview mirror from an Academy kit.
I guess Hasegawa is my favorite manufacturer. If you want a certain plane they probably have it.
Ken