Yep.
IIRC, as long as one isn't drastically weaker than their opponents and/or have statements that suggest that their feats were a one-time thing that they can only do with outside support, an individual can fully scale to a collective effort's result. Or smth along those lines.
Additionally, wasn't it stated Saori needed to be the one that dealt with Azusa since she is the only one who could deal with her cuz she taught her everything she knows? Plus, even disregarding Saori scaling, Azusa should still be comparable to Atsuko, Hiyori and Misaki since they all trained under Saori.
Plus, plus, Azusa, Hifumi and the Gourmet Research Society dealt with Perorodzilla Chroma and beat 'em; important as Rin, Momoka and Ayumu directly stated that Perorodzila Chroma was the strongest among the Chroma's minions in VFC2, iirc, so those seven would, weirdly enough, be in the same downscaling group as Arius Squad and Abydos. Probably.
Also, kek.
Oh ye. BTW. I am pretty sure the Problem Solver 68 manga is canon, or regarded as a official spin-off. IIRC, there is nothing that mess up the timeline. Especially since there is a pretty notable gap in time between Vols and event stories - barring exceptions like Vol 3 and Vol F, of course.
... Doesn't really offer much in terms of pure calculations, though. It does offer a good number of other things, though, like; Hina dominating Aru and OHKOing her, Haruka throwing hands and Aru showing off her skills when she isn't under the Unwelcome School effect.
Also, just remembered. IIRC, Rabbit Squad, by the time of VFC1, is implied to have reached the level of Fox Squad by taking out the Kasier Corp minion meant to dealt with them, and V4C2 outright shows this, so... Rabbit Squad might be able to scale to Wakamo, who scales to Pre-VF Abydos, via a possibly rating.