There are a few on ebay.
For example:
https://www.ebay.ca/itm/VINTAGE-AUT...337a9e2:g:GJ8AAOSw8KJb40Di:rk:16:pf:0&vxp=mtr
I know it's not what you're looking for but I have one with a 3inch face and a homemade aluminum mount if anyone's needing one like that.View attachment 677107 View attachment 677108
i've got the large face moroso , jones built View attachment 677110 tachs and brakets . these tachs are black rimmed .