Thx for the explanation, @Booli! I'm sorry my writing was imprecise. I should have said I'm looking for "regular" Super Nylgut strings for baritone ukulele, not unwound ones. Coming from guitar, wound strings don't bother me, though after playing a tenor with reentrant tuning, I can see the value in using all wound strings.
This does bring up another point of interest though. I have a set of Fremont black fluorocarbon (gCEA) to try next on my tenor. These also come in unwound low-G, but the G is a lot thicker than the single Soloist wound low-G that Fremont sells separately. If I do eventually try Low-G tuning, I think I'll stay with a wound G. Glen Rose has a baritone tuned in low-G, and he uses the LAVA reentrant G strings for baritone. He simply reorders the strings so the thickest serves as the G. I don't think I'd like this solution very much, as I'm fussy about intonation.
P.S. I edited the OP and title to remove the errant C I'd put in Aquila, but I can't figure out how to edit the thread title. It's probably right under my nose.... When I searched the forums looking for the solution, I found a thread in which the original poster said they'd figured it out but didn't post what the solution was. I noticed you'd pointed that out. I was disappointed that I found a thread discussing the topic - but no solution!