[LMH]

As far as I know, and I'm sure no expert on SW gauges but all of the secondary SW gauges used on FIA models were 2 5/8". Some original cars I've seen that were modified for racing used a mixture of standard street gauges (2 1/16") and comp gauges (2 5/8"), so I'm wondering if what you're thinking about is the larger comp fuel pressure gauge mixed with standard street guages. I've even seen Sun, Smiths and SW on the same dash!

I'd say the best place to find a 60's vintage Jones Motorola tach would be eBay. I think they were mechanical drive too, so just so you know that. You'd need to have a dist w/tach drive. Maybe there is a repro out there but I don't know of any.

Sorry I can't be more help!
Larry