Thanks Challenger, sorry for the late reply.
I guess it won't be that expensive but sure will be time consuming.
It looks like the tubes are Nickel-Copper, NiCopp is quite easy to bend and flare.
That's correct, I used Ni-Copp tubing and it was pretty easy to work with. The fittings on the block side are 1/16" NPT x -03 AN, I think from Fragola. I cut the AN side down so 0.040" a flare jet can be inserted to mate up with a flare fitting and provide a restriction. That might have bene overkill, but I was already into the project for so many hours, I figured a couple more won't hurt....
