The trim for the four small gauges attaches with 4 tabs that fit under the trim above, and is secured with a threaded stud through the dash, one at each end. I don't believe that trim is reproduced. Welding or soldering to the thin metal trim usually isn't possible. The studs just hold the trim in place, so if you grind the heads of two small bolts flat, JB epoxy weld may hold it if allowed to completely cure, and the nuts are carefully tightened while the trim is held in place.