I don't have a Healey, but I did put Dayton 72 spoke wheels on my 73 MGB
in 1995. They were tubeless with chrome rims and stainless spokes. They
came perfectly trued, have never leaked a bit of air, and still look
brand new 30,000+ miles later. I have never had to adjust a single spoke,
and after mounting the tyres, they are easily balanced with a few lead
weights epoxied to the inside of the rim. The original Dunlops that came
with the car new, were crap by comparison, and they were the ones made in
England, not India, or wherever they make them now. Hope this helps.
tkamd73