Triomphe (as well as Victory and pre-'85 NR) is said to be 39.1 stack ht. according to Sutherlands.
There may be some other HS with about 34mm stack, beside the ones you already mention (including Gran Sport in ALL threadings) there's the inexpensive Ritchey logic and logic comp and I've heard that some variety of Tange Levin has a low stack, but that particular one's not listed in my copy of Sutherlands.
EDIT: there's a Tange "Super Roller" that's just over at 34.3, but that's a Tange I've never seen. There are quite a few Shimano HS that stcck under 35mm, if you can go with the "Big S" brand. The easiest to find might be the 600 Ultegra, number HP-6400 and just 33.8