A couple years ago I found these Model 61 hoods from Italy on Ebay for $40 a pair. They were perfect reproductions, so perfect that they rotted away in 3 years, just like the originals. They got me thru 2016 Eroica, then died. I found some again last year, also on Ebay. They are out there if you keep looking. They also come in black, and white, too I think. The black rubber boots on the adjusters lasted even less than the gummed hoods, then rotted and disappeared. The second set of hoods did not include the boots.
Edit: I just checked Ebay, and there are black, white and gummed Universal hoods on there from $40 to $100. How bad do you want them?
First set of replacements, cracked after less than 3 years, used on 2016 Eroica.
Newest replacements, just before last year's Eroica. Bar tape was temporary to check placement of levers. After a year, these are still hanging in there.