Year One carries M&H afaik. From what I understand, they are the best. I did get a harness or two from Evans, and they were good, as well, and normally are at the Nationals, if you wanted to pick one up there.
I don't think they do dash harnesses, though.

1969 Dart GTS 340
1969 Super Bee X9 N-96
1969 Coronet R/T X9 N-96
2015 Dodge Dart GT
2019 Ram 2500 Big Horn.
Looking for the original block for my Bee. The last 4 are 7449