I've owned a 'few' bike over the years.
I really like them all for what each machine does for thier rideing style.
But I'm a Triumph Guy till the Universe goes boom, and 'Lucas' is but a distant memory told about only in whispered corners to scare little kids.

(Lucas is why those Brits like warm beer)
I can say one of the best things Nancy and I did was to buy the '04 America and the '05 SpeedMaster.
Both have been the most trouble free rides we have owned to date.
I don't know why getting parts for any Triumph would be a problem now days.
Heck, I live in No Where Land Ohio and a Triumph Dealer is just under 10 miles away!