En Dashes & Hyphens in Same Phrase

Without recasting and in lieu of unsightly suspensive hyphenation, could these work? The en dash (which means "to") is used between the figures, and the hyphens are used in the compound modifier. To me, the examples below are concise and clear.

Do you agree that the examples below are 100% punctuated correctly--yes or no?

45–50-year-old men

10–20-mile radius

$45–$55-million-per-year industry

$100,000–$150,000-a-year savings

10–15-degree temperature difference

$2–$5-per-day service fees

45–75-cent-a-week raises

55–65-mph speed zone

15–20-ounce steaks

20%–40%-a-year tax increases

It works, and it's technically unexceptionable; but I think it should be avoided. Hyphens and en-dashes are not readily distinguished on swift or casual reading, and the typographical convention of marking ranges with en-dashes rather than hyphens is not so universally followed that you can count on your readers recognizing its significance. Consequently, ##–#-xx-xx is not an easy construction to follow.

I urge you, as a courtesy to your readers, to employ “suspensive hyphenation”—##- to ##-xx-xxx—however unsightly you find it. I think that few of your readers will share your aesthetic objections (I don't), and most will appreciate your consideration (I would).