Personally I used the volt meter as I like them more than an amp gage. But I am also not interested in making my cars look as original as possible. You could always use the amp gage and just not wire it but I think that would mess up your attempt to make the dash look original. I used a 100 Amp alternator, again not original looking, and didn't go with the one wire type. Either way, you will have a good looking dash and should be able to make the rest look close to original. Good luck and I hope that everything works out the way you want it to.
Ron
